the following times were recorded by the quarter-mile and mile runners of a university track team (times are in minutes). quarter-mile times: 0.92 0.96 1.04 0.93 1.00 mile times: 4.52 4.35 4.60 4.71 4.51 after viewing this sample of running times, one of the coaches commented that the quarter-milers turned in the more consistent times. use the standard deviation and the coefficient of variation to summarize the variability in the data. quarter-milers standard deviation (to decimals) coefficient of variation (to decimal) % milers standard deviation (to decimals) coefficient of variation (to decimal) % does the use of the coefficient of variation indicate that the coach's statement should be qualified? (i) yes; the coefficient shows that as a percentage of the mean, the quarter-milers' times show less variability. (ii) no; the coefficient shows that as a percentage of the mean, the quarter-milers' times show more variability. choose the correct answer. - select your answer -

Answers

Answer 1

No; the coefficient shows that as a percentage of the mean, the quarter-milers' times show more variability.

How did we arrive at this assertion?

To summarize the variability in the data, we can calculate the standard deviation and the coefficient of variation for both the quarter-mile and mile runners.

Standard deviation:

Quarter-mile times:

mean = (0.92 + 0.96 + 1.04 + 0.93 + 1.00) / 5 = 0.97

differences from mean = [0.92 - 0.97, 0.96 - 0.97, 1.04 - 0.97, 0.93 - 0.97, 1.00 - 0.97] = [-0.05, -0.01, 0.07, -0.04, 0.03]

squared differences = [0.0025, 0.0001, 0.0049, 0.0016, 0.0009]

sum of squared differences = 0.01

standard deviation = √(sum of squared differences / (number of data points - 1)) = sqrt(0.01 / 4) = 0.049

Mile times:

mean = (4.52 + 4.35 + 4.60 + 4.71 + 4.51) / 5 = 4.56

differences from mean = [4.52 - 4.56, 4.35 - 4.56, 4.60 - 4.56, 4.71 - 4.56, 4.51 - 4.56] = [-0.04, -0.21, 0.04, 0.15, -0.05]

squared differences = [0.0016, 0.0441, 0.0016, 0.0225, 0.0025]

sum of squared differences = 0.0727

standard deviation = √(sum of squared differences / (number of data points - 1)) = sqrt(0.0727 / 4) = 0.139

Coefficient of variation:

Quarter-mile times: coefficient of variation = standard deviation / mean = 0.049 / 0.97 = 0.051 (to 2 decimal places)

Mile times: coefficient of variation = standard deviation / mean = 0.139 / 4.56 = 0.0305 (to 4 decimal places)

The use of the coefficient of variation indicates that the coach's statement should be qualified. The coefficient shows that as a percentage of the mean, the mile runners' times have less variability (3.05%) compared to the quarter-mile runners' times (5.1%). So, the answer is (ii) no; the coefficient shows that as a percentage of the mean, the quarter-milers' times show more variability.

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Related Questions


Jeter has $60 in his savings account. His sister Callie has $125. Jeter plans on saving $5
of his allowance a week, while Callie plans on spending $10 each week. Which of the
following would be an equation you could use to find out when the two will have the
same amount of money.

Answers

Answer:

60 + 5x = 125 - 10x

Step-by-step explanation:

Jeter- 60 + 5x

Callie- 125 - 10x

Set them equal to each other to find out when they will equal the same amount

Answer:

The answer can be expressed in multiple forms

[tex]4.\overline3\overline3[/tex] weeks

[tex]4\frac{1}{3}[/tex] weeks

Step-by-step explanation:

Lets write down what we are given

Jeter Initial Amount = $60.00

Callie Initial Amount = $125.00

Deposit/Withdrawal Per Week

Jeter + $5.00

Callie - $10.00

We can set up an expression for Jeter's money

[tex]60+5w[/tex]

We can set up an expression for Callie's money

[tex]125-10w[/tex]

[tex]w[/tex] represents the number of weeks

We can set each expression equal to each other to find out when they will have the same amount of money.

[tex]60+6w=125-10w[/tex]

Lets solve for [tex]w[/tex].

Add [tex]10w[/tex] to both sides of the equation.

[tex]60+5w+10w=125-10w+10w[/tex]

Combine like terms and simplify.

[tex]60+15w=125[/tex]

Subtract 60 from both sides of the equation.

[tex]60+15w-60=125-60[/tex]

Evaluate the subtraction and simplify..

[tex]15w=65[/tex]

Divide both sides of the equation by 15.

[tex]\frac{15w}{15}=\frac{65}{15}[/tex]

Simplify the left side by cancelling the common factor of 15.

[tex]w=\frac{65}{15}[/tex]

[tex]w=\frac{13}{3}[/tex]

[tex]w=4.3333[/tex]

[tex]w=4\frac{1}{3}[/tex]

Which is a feature of function g if g(x)=-f(x-4)?

Answers

For the function, the x-intercept of g(x) is at (5,0).

What is the function?

A relation between a collection of inputs and outputs is known as a function. A function is, to put it simply, a relationship between inputs in which each input is connected to precisely one output. Each function has a range, codomain, and domain. The usual way to refer to a function is as f(x), where x is the input.

Given f(x) = ln(x)

and g(x) = -f(x - 4)

the function is

g(x) = -ln(x - 4)

when x = 5

g(x) = -ln(5 - 4)

g(x) = -ln1

g(x) = 0

the coordinates are (5, 0)

Hence the x-intercept is (5, 0).

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Hi can someone please help me with these questions I'm really struggling with them!!!

Answers

Answer:

Step-by-step explanation:

∠ EGF=180-∠FGH

          = 180-(180-112)

          = 112°

∠LKM= 90= 8X -6

           2(4X-3)=90

             4X-3=45°

3)

22=4X-10

 X=8

NR= 3(8) +6

     = 30

PLEASE ANSWER SOON DON'T HAVE MUCH TIME!!!!!!!!!!!Figure 1 and figure 2 are right triangles. two right triangles labeled figure 1 and figure 2, where the legs of figure 1 are 3 units long and the legs of figure 2 are 4 units long What scale factor was used to produce Figure 2 from Figure 1? 3 4 3 over 4 4 over 3

Answers

The scale factor to produce figure {2} from figure {1} is -

{K} = 4/3.

What is scale factor?

A scale factor is defined as the ratio between the scale of a given original object and a new object, which is its representation but of a different size either bigger or smaller. Mathematically, we can write -

{K} = A/B

Given are two right triangles as figure {1} and {2}.

We can write the scale factor as the ration of the lengths of the legs as -

{K} = 4/3

Therefore, the scale factor to produce figure {2} from figure {1} is -

{K} = 4/3.

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Try This question out and I’ll give you brainliest

Answers

Answer:

x ≈ - 2.70 or x ≈ 2.03

Step-by-step explanation:

Given:

[tex]1.5x^2+x-8.2=0[/tex]

Solve:

Multiply both sides by 10:

[tex]1.5x^2\cdot \:10+x\cdot \:10-8.2\cdot \:10=0\cdot \:10[/tex]

[tex]15x^2+10x-82=0[/tex]

Quadratic Formula: [tex]x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}[/tex]

Using the Quadratic formula:

[tex]x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}[/tex]

Knowing that;

quadratic equation of the form: [tex]ax^2+bx+c=0[/tex]

a = 15

b = 10

c = -82

Plug it in:

[tex]=\frac{-10\pm \sqrt{10^2-4\cdot \:15\left(-82\right)}}{2\cdot \:15}[/tex]

[tex]=\frac{-10\pm \:2\sqrt{1255}}{2\cdot \:15}[/tex]

Separate the solutions since there are two:

[tex]x_1=\frac{-10+2\sqrt{1255}}{2\cdot \:15},\:x_2=\frac{-10-2\sqrt{1255}}{2\cdot \:15}[/tex]

[tex]=\frac{-10+2\sqrt{1255}}{30}[/tex]

[tex]=\frac{-5+\sqrt{1255}}{15}[/tex]

[tex]x=\frac{-5+\sqrt{1255}}{15},\:x=-\frac{5+\sqrt{1255}}{15}[/tex]

Which as a decimal is:

[tex]x=-\frac{5+\sqrt{1255}}{15}[/tex] ⇒ [tex]\left\mathrm Decimal}:\quad x=-2.69506\dots \right[/tex]

[tex]x=\frac{-5+\sqrt{1255}}{15}[/tex]    ⇒   [tex]\left\mathrm{Decimal}:\quad x=2.02839\dots \right[/tex]

Rounding:

-2.69506.. ≈ -2.70

2.02839..  ≈ 2.03

Hence, x ≈ - 2.70 or x ≈ 2.03.

RevyBreeze

. Solve for x x if m ⌢ = ( 12 x + 25 ) ∘ m VW ⌢ =(12x+25)

Answers

The required simplified value of the measure of the multiplication factor x in the circle is 2.25.

What is simplification?

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

here,
Arc VW = 12x + 25 °
∠VXW = 52°

According to the question,
Arc VW = ∠VXW
12x + 25 = 52
x = 52 - 25 / 12
x = 2.25

Thus, the required simplified value of the measure of the multiplication factor x in the circle is 2.25.

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What is the equation of the line that passes through the point (6, -3) and has a
slope of -?

Answers

The equation of the line that passes through the point (6, -3) and has a slope of {m} = - k is →

y = - kx + (6k - 3).

What is the equation of a straight line?

The general equation of a straight line is -

y = mx + c

where -

{m} → slope

{c} → y - intercept

Given is the line that passes through the point (6, -3) and has a slope of {m} = - k.

We can write the general equation as -

y = mx + c

Now -

{m} = - k                     .... Eq { 1 }

We can write -

y = - kx + c

For the point (6, - 3), we can write -

- 3 = - 6k + c

{c} = 6k - 3                           .... Eq { 2 }

We can write the equation of the line as -

y = - kx + (6k - 3)

Therefore, the equation of the line that passes through the point (6, -3) and has a slope of {m} = - k is →

y = - kx + (6k - 3).

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2
5
9
10
Which statements are true? Select the two correct answers.
The square root of a positive number greater than 1 is less than the number.
The square root of a positive number is always less than half of the number itself.
The square root of a positive number less than 1 is less than the number.
The square root of a perfect square is not a whole number.
The square root of a positive number less than 1 is between 0 and 1.
TIME REM
38:-

Answers

Answer:

The square root of a positive number greater than 1 is less than the number The square root of a positive number is less than half of the number itself

A lab technician observed 5 bacteria growing in a lab dish. One hour later he observed 25 bacteria. Every hour he notice about 5 times as many as the hour before. After several hours of observation, he determined the lab dish had 5 to the power of 9 bacteria. Use a calculator to find the number in standard form that represents the bacteria in the lab dish.

Answers

After several hours of observation, he determined the lab dish had 1953125 bacteria.

What is Number system?

A number system is defined as a system of writing to express numbers.

Given that A lab technician observed 5 bacteria growing in a lab dish.

One hour later he observed 25 bacteria.

Every hour he notice about 5 times as many as the hour before.

After several hours of observation, he determined the lab dish had 5 to the power of 9 bacteria.

5⁹

Five to the power of nine

1953125

Hence, After several hours of observation, he determined the lab dish had 1953125 bacteria.

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A house on the market was valued at $298,000. After several years, the value decreased by 16% By how much did the house's value decrease in dollars? What is the current value of the house?

Answers

[tex]\begin{array}{|c|ll} \cline{1-1} \textit{\textit{\LARGE a}\% of \textit{\LARGE b}}\\ \cline{1-1} \\ \left( \cfrac{\textit{\LARGE a}}{100} \right)\cdot \textit{\LARGE b} \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{16\% of 298000}}{\left( \cfrac{16}{100} \right)298000}\implies 47680[/tex]

Given m||n, find the value of x

Answers

Answer:

57 degrees

Step-by-step explanation:

If angle A=−130∘, what is the radian measure of A?

Answers

The radian measure of angle A is -13π/18.

What are angles?

The construction of an angle is a type of geometric shape made by connecting two rays at their termini. Three letters that make up the shape of the angle can also be used to represent the angle, with the middle letter indicating the location of the angle (i.e.its vertex).

Given an angle A = -130°

to find the radian measure,

we know that,

1° = π/180 radians

-130° = -130(π/180)

-130° = -13π/18

Hence the value in radian is -13π/18.

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NO LINKS!!!
1. If each spinner is spun once, what is the probability that both spinners show the same color?
2. If each spinner is spun once, what is the probability of getting a red-blue combination?

Answers

Answer:

[tex]\sf 1. \quad \dfrac{3}{8}[/tex]

[tex]\sf 2. \quad \dfrac{7}{24}[/tex]

Step-by-step explanation:

Spinner 1

Spinner 1 is divided into 6 congruent sections.

There are 3 red sections, 2 blue sections and 1 yellow section.

Therefore, the probability of spinning each of the three colors is:

    [tex]\bullet \quad \sf P(R_1)=\dfrac{3}{6}=\dfrac{1}{2}[/tex]

    [tex]\bullet \quad \sf P(B_1)=\dfrac{2}{6}=\dfrac{1}{3}[/tex]

    [tex]\bullet \quad \sf P(Y_1)=\dfrac{1}{6}[/tex]

Spinner 2

Spinner 2 is divided into 3 sections of differing sizes.

The red section is half of the spinner. The blue and yellow sections are quarters of the spinner.

Therefore, the probability of spinning each of the three colors is:

    [tex]\bullet \quad \sf P(R_2)=\dfrac{1}{2}[/tex]

    [tex]\bullet \quad \sf P(B_2)=\dfrac{1}{4}[/tex]

    [tex]\bullet \quad \sf P(Y_2)=\dfrac{1}{4}[/tex]

Question 1

If each spinner is spun once, then:

The probability that both spinners both show red is:

[tex]\sf P(R_1)\;and\;P(R_2)=\dfrac{1}{2} \times \dfrac{1}{2}=\dfrac{1}{4}[/tex]

The probability that both spinners both show blue is:

[tex]\sf P(B_1)\;and\;P(B_2)=\dfrac{1}{3} \times \dfrac{1}{4}=\dfrac{1}{12}[/tex]

The probability that both spinners both show yellow is:

[tex]\sf P(Y_1)\;and\;P(Y_2)=\dfrac{1}{6} \times \dfrac{1}{4}=\dfrac{1}{24}[/tex]

Therefore, the probability that both spinners show the same colour is:

[tex]\sf P(R_1\;\&\;R_2)\;or\;P(B_1\;\&\;B_2)\;or\;P(Y_1\;\&\;Y_2)=\dfrac{1}{4}+\dfrac{1}{12}+\dfrac{1}{24}=\dfrac{9}{24}=\dfrac{3}{8}[/tex]

Question 2

If each spinner is spun once, the probability of getting a red from spinner 1 and a blue from spinner 2 is:

[tex]\sf P(R_1)\;and\;P(B_2)=\dfrac{1}{2} \times \dfrac{1}{4}=\dfrac{1}{8}[/tex]

The probability of getting a blue from spinner 1 and a red from spinner 2 is:

[tex]\sf P(B_1)\;and\;P(R_2)=\dfrac{1}{3} \times \dfrac{1}{2}=\dfrac{1}{6}[/tex]

Therefore, the probability of getting a red-blue combination is:

[tex]\sf P(R_1\;\&\;B_2)\;or\;P(B_1\;\&\;R_2)=\dfrac{1}{8}+\dfrac{1}{6}=\dfrac{7}{24}[/tex]

A company with 20 million shares earns $1.6 million one year and loses $2.6 million the next year. Find the per-share income for two years

Answers

Answer:

-0.05 per share  (loss)

Step-by-step explanation:

2 years net loss = 1 mm

so EPS (earnings per share) = -1/20 = -0.05 per share loss

please help for brainliest

Answers

The solution set of the inequality is (-7.5, 1), and the correct graph is the one in option A.

How to solve the inequality?

Here we want to solve the inequality below:

-10 < 2x + 5 < 7

To solve this, we need to isolate the variable x, then we will get:

-10 < 2x + 5 < 7

-10 - 5 < 2x < 7 - 5

-15 < 2x < 2

-15/2 < x < 2/2

-7.5 < x < 1

So the solution set is (-7.5, 1)

So the graph of this will be a number line that starts at -7.5 and ends at 1, that would be the one in option a.

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The concentration of a solution can be expressed in a number of ways. Identify which of the concentration expressions can also be used to describe a solution with a concentration of 1 mg/mL of solute. Assume the density of the solution is 1.00 g/mL. 109 g/L 10-3 ug/mL 109 ppm O 1g/L 10-mg/uL 103 ug/mL

Answers

The concentration of 1 mg/mL can be described as: 103 ug/mL and [tex]10^{9}[/tex] ppm.

The concentration of a solution can be expressed as the amount of solute in a given volume of the solution. The expression for concentration can be in terms of mass per volume, such as milligrams per milliliter (mg/mL) or grams per liter (g/L), or in terms of moles per volume, such as moles per liter (mol/L).

A concentration of 1 mg/mL means that there is 1 milligram of solute in every milliliter of the solution. This can be converted to micrograms per milliliter (ug/mL) by multiplying by 1000, giving us

[tex]1mg/mL=1000ug/mL=10^{6} ug/mL[/tex].

Parts per million (ppm) is another expression of concentration. To convert mg/mL to ppm, we need to know the density of the solution, which is given as 1.00 g/mL. We can use this density to convert the mass of solute to volume and then find the ratio of solute to solution volume.

[tex]1mg/mL=1mg/1mL=1g/1000mL=1/1000 g/mL= 10^{-3}g/mL\\[/tex]

So, [tex]1mg/mL=10^{-3}g/mL=10^{-3} *10^{6} mg/mL=10^{9} ppm[/tex].

Therefore, the concentration of 1 mg/mL can be expressed as: 103 ug/mL and [tex]10^{9}[/tex] ppm.

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Element X is a radioactive isotope such that its mass decreases by 51% every day. If
an experiment starts out with 150 grams of Element X, write a function to represent
the mass of the sample after t days, where the hourly rate of change can be found
from a constant in the function. Round all coefficients in the function to four decimal
places. Also, determine the percentage rate of change per hour, to the nearest
hundredth of a percent.

Answers

The percentage rate of change per hour to the nearest hundredth is 3%.

Function to represent decay is A(t)= 150×([tex].97^{t}[/tex]).

What is percentage?

Percentage means out of hundred. If we want to calculate percentage the we have to make the fraction out of hundred.

It means that if same thing is distributed among 100 people how much a single person would get.

Now for the given question:

For radioactive decay the mathematical equation is

      A(t) = A(0)[tex](1-r)^{t}[/tex]

where A(0) is the initial quantity = 150 gm. and r is the rate of decay = 51%

For hourly decay,

     A(24)= A(0)(1-0.51) as 1 day has 24 hour and each day substance decay by 51%.

     A(24)= A(0)×0.49

but,

   A(24)= A(0)[tex](1-r)^{24}[/tex]

0.49A(0)=A(0)[tex](1-r)^{24}[/tex]       (we do this to calculate r)

.049= [tex](1-r)^{24}[/tex]

1-r = [tex]\sqrt[24]{.49}[/tex]

1-r= 0.97

r = 1- 0.97

r= 0.03

r = 3%

Function for hourly decay,

A(t) = 150 ×[tex](1-r)^{t}[/tex]

A(t) = 150 ×[tex](1-0.03)^{t}[/tex]

A(t)= 150×([tex].97^{t}[/tex])

Hence, Hourly rate of decay is 3% and the equation for hourly rate o decay is A(t)=150×[tex].97^{t}[/tex].

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The Gallup-Health ways Well-Being Index is a survey that follows trends of U.S. residents on a regular basis. There are six areas of health and wellness covered in the survey: Life Evaluation, Emotional Health, Physical Health, Healthy Behavior, Work Environment, and Basic Access. Some of the questions used to measure the Index are listed below. Identify the type of data obtained from each question used in this survey: qualitative, quantitative discrete, or quantitative continuous.
a. Do you have any health problems that prevent you from doing any of the things people your age can normally do?
b. During the past 30 days, for about how many days did poor health keep you from doing your usual activities?
c. In the last seven days, on how many days did you exercise for 30 minutes or more?
d. Do you have health insurance coverage?

Answers

a. Qualitative    b. Quantitative discrete    c. Quantitative discrete   d. Qualitative

Question a is qualitative because it does not ask for a numerical answer but rather for a yes or no response. Question b is quantitative discrete because it requires a numerical answer from the respondent, but the answer is limited to a range of possible values (0-30 days). Question c is quantitative discrete because it requires a numerical answer from the respondent, but the answer is limited to a range of possible values (0-7 days). Question d is qualitative because it does not ask for a numerical answer but rather for a yes or no response. All of these questions are part of the Gallup-Healthways Well-Being Index survey, which is used to track trends in U.S. residents' health and wellbeing on a regular basis. The survey covers six areas of health and wellness, and the questions used to measure the Index provide both qualitative and quantitative data.

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in a boxplot, the dashed vertical line in the middle of the box represents which of the following measures of location?

Answers

Box plot is the use of a rectangle to represent data where the vertical sides of the rectangle represents the lower and upper quartile.

From the box plot,

The minimum is 153 cm

The first quartile is 168.4 cm

The second quartile is 174.2 cm

The third quartile is 183.9

The maximum is 195 cm

See attachment for the missing box plot.

There are 5 vertical lines in a box plot

The first represents the minimum value

The second represents the first quartile

The third represents the second quartile i.e. the median

The fourth represents the third quartile

The last represents the maximum quartile

From the attached box plot.

The first vertical line is 153 cm

The second vertical line is 168.4 cm

The third vertical line is 174.2 cm

The fourth vertical line is 183.9 cm

The firth vertical line is 195 cm

Hence:

The minimum is 153 cm

The first quartile is 168.4 cm

The second quartile is 174.2 cm

The third quartile is 183.9

The maximum is 195 cm

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A video rental company offers a plan that includes a membership fee of $11 and charges $1 for every DVD borrowed. They also offer a second plan, that costs $42 per month for unlimited DVD rentals. If a customer borrows enough DVDs in a month, the two plans cost the same amount. What is that total cost of either plan? How many DVDs is that?

Answers

The total cost of either plan is, 42

The number of DVD's rented is, 31

What is an Equation ?

An equation is a mathematical term, which indicates that the value of two algebraic expressions are equal. There are various parts of an equation which are, coefficients, variables, constants, terms, operators, expressions, and equal to sign.

For example, 3x+2y=0.

Types of equation

1. Linear Equation

2. Quadratic Equation

3. Cubic Equation

Given that,

Plan 1- membership fee of $11 and charges $1 for every DVD

Plan 2- $42 per month for unlimited DVD rentals

The two plans cost the same amount

The total cost of either plan = ?

The number of DVD's rented = ?

Suppose, the number of DVD's is n

So, cost in plan 1,

=  membership fee  +  n x (charges $1 for every DVD)

=   11 + n x 1

=   11 + n

And, cost in plan 2,

=  42

According to given condition,

cost is equal in both cases,

11 + n = 42

n = 31

Hence, the total cost and number of DVD's are respectively,  45 & 31

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Solve the system of equations. 3x + 4y = 12 2x + y = 8 (0, 3) (2, 3) (4, 0) (5, −2)

Answers

The system of equations has its solution to be (4, 0)

How to solve the system of equations

From the question, we have the following parameters that can be used in our computation:

. 3x + 4y = 12

2x + y = 8

Make y the subject

y = 8 - 2x

So, the second equation becomes

3x + 4(8 - 2x) = 12

Open the brackets

This gives

3x + 32 - 8x = 12

So, we have

-5x = -20

Divide

x = 4

Recall that

y = 8 - 2x

So, we have

y = 8 - 2(4)

y = 0

Hence, the solution is (4, 0)

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Find m angle EBD

Find m angle ABC

Answers

Check the picture below.

since we know the triangle EBD is an isosceles, that means that BE = BD, and twin sides will yield twin angles, so the ∡EBD is simply the difference of 180 - 57 - 57, as far as ∡ABC, well, that's just 19 + 66 + 19.  ∡DBC is 19° because both triangles on left and right are congruent.

I do not understand these questions please solve them for me

Answers

For the first scenario (choosing 3 balls from 1 to 9):

[tex]_{9}C_{3} = \frac{9!}{3!(9 - 3)!} [/tex]

For the second scenario (choosing 5 potato chips from 20):

[tex]_{20}C_{5} = \frac{20!}{5!(20 - 5)!} [/tex]

For the third scenario (choosing 2 team members as captain and co-captain from 24):

[tex]_{24}P_{2} = \frac{24!}{(24 - 2)!} [/tex]

The first situation is a combination. In a combination, the order of the items does not matter. In this game, it does not matter what order the 3 balls are in, as long as you have the correct numbers in a row. If you choose balls 1, 2, and 3, it's the same as if you choose 3, 2, and 1. A permutation, on the other hand, would require the order of the items to be specific. In this game, the order of the numbers doesn't matter, making it a combination.

The second situation is a combination. In this scenario, you are choosing 5 out of 20 different potato chips, and the order in which you choose them doesn't matter. Whether you choose chips 1, 2, 3, 4, and 5, or chips 5, 4, 3, 2, and 1, the combination is still the same.

The third situation is a permutation. In a permutation, the order of the items matters, meaning the first chosen person will be the captain and the second chosen person will be the co-captain. In this scenario, there are 24 people to choose from, and the order in which they are chosen determines their role as captain or co-captain. A combination, on the other hand, only cares about the items themselves, not the order in which they are chosen. In this scenario, the order matters, making it a permutation.

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Sandra is renting a car. She will pay a flat fee of $100 and she will also pay for each mile driven over 200 miles. The total amount she can expect to pay, in dollars can be represented by the function f(x) = 1.5x + 100, where x is the number of miles driven over 200. What is the inverse of this function? F-BF.4c
Group of answer choices

Answers

Answer:
The inverse of a function is the reflection of a function over the line y=x. Therefore, this will reflect the function over the line of symmetry.

As the line of symmetry in this case is the x-axis, the inverse function can be found by switching the x and y values.

So we have f(x) = 1.5x + 100, and the inverse function is therefore y=1.5x+100

Please let me know if this helps. :)

A standard six-sided die is rolled 7 times. You are told that among the rolls, there was one 1, two 2's, and three 4's. How many possible sequences of rolls could there have been? (For example, 5, 1, 2, 2, 4, 4, 4 is one possible sequence. 4, 1, 4, 4, 2, 2, 4 is one possible sequence.)

Answers

The possible sequences of rolls are [tex]6^7[/tex].

What is sample space?

It is the total number of possible outcomes from a given set.

We have,

Standard six-sided die:

The number of times the dice are rolled = 7 times.

Now,

Number of sides in a dice = 6

So,

The total possible outcomes.

= [tex]6^7[/tex]

Thus,

The possible sequences of rolls are [tex]6^7[/tex].

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Answer:

105

Step-by-step explanation:

First off, please don't simply copy this for your homework, as the only person that is harmed is you.

(7)        (3)

(4)   x   (2)    = 35 * 3 = 105

^

Is the ways to choose the positions of the 4

------------^

Is the way to choose the positions of the 1s and 2s.


PLEASE HELP MEE!!!! ASAP I BEG

Write a system of equations for this word problem. DO NOT SOLVE IT

Tickets to the movie theater are $5.50 for children
and $7.00 for adults. On Saturday, 1,250 people
attended the movie theater (adults and children)
The movie theater received $7,979 in ticket sales.
How many children and how many adults
attended the theater on Saturday?

Equation
TOPIC—
# of tickets—
$ earned—

Answers

Answer:

a + c = 1250

$7.00a + $5.50c = $7979

Step-by-step explanation:

Making the system of equations for the number of tickets involved how many attended and who attended

It's showing 1250 attended and children and adults showed up. Let's a = adults and c = children

a + c = 1250 <--- that's saying adults + children equal 1250

For $ earned, it involves how much each ticket was and the total cost

Looks like we have prices for a and c and the total cost which was 7979. Since adults were 7.00, we'll call that 7.00a. And for children it was 5.50, we'll call that 5.50c

Putting it together 7.00a + 5.50c = 7979 because all the $7.00 tickets plus all the $5.50 tickets cost $7979

List in order from least to greatest all the whole number factors of 28.

Answers

The factors of 28 are 1, 2, 4, 7, 14, and 28.

whats 1+1? please explain :)!

Answers

The value of 1+1 in base 10 is 2 and its value in base 2 is 10

What is addition?

Addition in math is a process of combining two or more numbers. Addends are the numbers being added, and the result or the final answer we get after the process is called the sum.

For example if there 20 apples, 30mangoes and 40 cashews in a basket. The total number of fruits in the basket is obtained by adding all the fruits together.

This is means the total number of of fruit = 20+30+40 = 90 fruits.

Therefore 90 fruits are in the basket.

Similarly, the addition of 1 and 1 will give

1+1 = 2. This answer is in base 10.

1+1 can also be in base two and 1+1 in base 2 = 10

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Having designed a binary adder, you are now ready to design a 2-bit by 2-bit unsigned binary multiplier. The multiplier takes two 2-bit inputs A[1:0] and B[1:0] and produces an output Y which is the product of A[1:0] and B [ 1:0]. The standard notation for this is: Y = A[1:0] B[1:0] What is the maximum value that can be represented in 2 bits for A(A[1:0])? What is the maximum value that can be represented in 2 bits for Z?(B[1:0])? What is the maximum possible value of Y? What is the number of required bits to represent the maximum value of Y? Write a truth table for the multiplier described above. You will have a four-input truth table with the inputs being A[l], A[0], B[l], and B{0}. Implement the third bit of output, Y[2] from the truth table using only AND, OR, and NOT gates.

Answers

The third bit of output, Y[2], can be implemented using AND, OR, and NOT gates to calculate the sum of the product of the first bits of both inputs, A[1] and B[1], plus the product of the second bits of both inputs, A[0] and B[0].

The maximum value that can be represented in 2 bits for A(A[1:0]) is 3, and the maximum value that can be represented in 2 bits for B[1:0] is also 3. The maximum possible value of Y is 9, which requires 4 bits to represent. The truth table for the multiplier is shown below:

A[1] A[0] B[1] B[0] Y[3] Y[2] Y[1] Y[0]

0    0    0    0    0     0     0     0

0    0    0    1    0     0     0     1

0    0    1    0    0     0     1     0

0    0    1    1    0     0     1     1

0    1    0    0    0     0     0     0

0    1    0    1    0     0     0     1

0    1    1    0    0     0     1     0

0    1    1    1    0     0     1     1

1    0    0    0    0     0     0     0

1    0    0    1    0     0     0     1

1    0    1    0    0     0     1     0

1    0    1    1    0     0     1     1

1    1    0    0    0     1     0     0

1    1    0    1    0     1     0     1

1    1    1    0    0     1     1     0

1    1    1    1    1     1     1     1

The third bit of output, Y[2], can be implemented using AND, OR, and NOT gates as follows:

Y[2] = A[1] * B[1] + (A[1] + B[1]) * (A[0] * B[0])

This can be simplified to Y[2] = A[1] * B[1] + A[0] * B[0]. That is, the third bit of output Y[2] is equal to the product of the first bits of both inputs, A[1] and B[1], plus the product of the second bits of both inputs, A[0] and B[0].

The third bit of output, Y[2], can be implemented using AND, OR, and NOT gates to calculate the sum of the product of the first bits of both inputs, A[1] and B[1], plus the product of the second bits of both inputs, A[0] and B[0].

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A list of numbers consists of p positive and n negative numbers. If a number is picked at random from this list, the probability that the number is positive is 3/5. What is the value of n/p?

Answers

The value of n/p = 5n/3p.

What is Probability?

It is a branch of mathematics that deals with the occurrence of a random event.

Let's assume that the total number of numbers in the list is T. Therefore, p + n = T.

The probability of picking a positive number is 3/5.

So p/T = 3/5.

Ratio of the number of negative numbers to the number of positive numbers is n/p.

Divide the two equations we get

n/p = (n/T) / (p/T) = (n/T) / (3/5) = (5/3) * (n/T) = 5n/3p

Hence, the value of n/p = 5n/3p.

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