distance between one pair of integers that she plotted: 10 unit, 7 unit, 3 unit.
Number line :
the line is a horizontal line that has equally spread number increments. The numbers included on the line will determine how the number on the line can be answered. The question that goes with the number determines how it will be used, for example, in plotting a point.
The numbers on the left are smaller than the numbers on the right of the number line. A number line can also be used to carry out addition, subtraction, and multiplication. We always move right to add, move left to subtract, and skip count to multiply.
Distance formula :
D= right side integer of horizontal line - left side integer of the horizontal line
Distance between the points -8 and 2
d = 2-(-8)
d=10 unit
Distance between the points -5 and 2
d= 2-(-5)
d=2+5
d=7 unit
Distance between the points -5 and -8
d= -5-(-8)
d=-5+8
d=3
distance between one pair of integers that she plotted: 10 unit, 7 unit, 3 unit.
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6. Find the number that can be added to 207 to make the sum divisible by 17.
Answer: 14
207+14 = 221
221/17 = 13 (so the sum of 207 and 14 is divisible by 17)
A school has 400 students. If 40 students were surveyed, what percent of the school was surveyed?
Answer:
0.18
Step-by-step explanation:
Given: 60% students were in high school, 40% were in middle school and of the high school students, 30% had visited a foreign country
To find: probability that the student is in high school and has visited a foreign country
Solution:
Let x denotes total number of students
Number of students in high school = 60% of x =
Number of students in middle school = 40% of x =
Number of students who are in high school and have visited foreign country = 30% of Number of students in high school =
Probability that the student is in high school and has visited a foreign country = Number of students who are in high school and have visited foreign country/ Total number of students =
Answer:
Step-by-step explanation:
160% Was surveyed!
40% of 400
The irreversible loss of an island from over 100 acres in size to less than 3 acres is an example of?
The irreversible loss of an island from over 100 acres in size to less than 3 acres is an example of the irreversible nature of human change.
Human activity has lead to the change of Earth's climate in unimaginable ways over the last thousand years. Some of these changes are so significant that they are practically inevitable and irreversible.
Due to global warming, the planet's temperature is increasing gradually every year. This change in climate causes polar ice caps to melt and increases the water level.
Islands, which are pieces of land in between water bodies, are reducing in size due to this. The increased water level submerges some or all parts of an island. This is especially threatening for small islands.
This is not only dangerous for the human and wildlife population of these islands, but also for the general habitability. Due to frequent flooding, soil salinity increases and this makes it difficult to cultivate these islands.
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Pls help me solve this question, also include step by step calculation ya. Thks
Giving brainliest to the best answer
[tex]\displaystyle\\Answer:\ x=\sqrt{2}\ \ \ \ \ x=-\sqrt{2}\ \ \ \ \ x=\frac{ln5}{2}[/tex]
Step-by-step explanation:
[tex]5x^2-x^2e^{2x}+2e^{2x}=10[/tex]
[tex]Let:\ x^2=t \ \ \ \ \ e^{2x}=v\\Hence,\\5t-tv+2v^2=10\\5t-tv+2v^2-10=10-10\\5t-tv-10+2v^2=0\\t(5-v)-2(5-v)=0\\(5-v)(t-2)=0\\5-v=0\\5-v+v=0+v\\5=v\\5=e^{2x}[/tex]
Prologarithmize both parts of the equation:
[tex]ln5=lne^{2x}\\ln5=2x*lne\\ln5=2x*1\\ln5=2x\\[/tex]
Divide both parts of the equation by 2:
[tex]\displaystyle\\x=\frac{ln5}{2}[/tex]
[tex]t-2=0\\t-2+2=0+2\\t=2\\x^2=2\\x=\sqrt{2} \\x=-\sqrt{2}[/tex]
a traffic study has shown that the probability that 55 cars will pass over a small bridge in a 4-4-minute period is 0.16.0.16. what are the odds against exactly 55 cars passing over the bridge in that time?
4:21 are the odds against exactly 55 cars passing over the bridge in that time.
What is Probability?
The probability serves as a gauge for how likely an event is to occur. It gauges how likely an event is. P(E) = Number of Favorable Outcomes/Number of Total Outcomes is the formula for probability.Probability is the branch of mathematics concerning the occurrence of a random event, and four main types of probability exist: classical, empirical, subjective and axiomatic.Probability of 0.16, thus, for 100 trials, 16 successes and 84 failures, and the odd is:
16:84, which, simplifying by 4, is 4:21.
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a number divided by 3 and then subtracted by 4 is the same as -10
Answer:
-18
Step-by-step explanation:
x=???
First, we know that the number we are looking for is divisible by 3. So lets list so numbers that are divisible by 3:
all (+,-) 6,9,12,15,18,........
Second, since we know the answer has to be in the double digits from the list we can have only 3 possibles answers.
12÷3=4
4-4=0
-12÷3=-4
-4-4=-8
So 12 nor -12 cant be the answer
18÷3=6
6-4=2
-18÷3=-6
-6-4=-10
So, the answer to the problem is -18÷3-4=-10
The function y=x+3 is what type of function?
1. linear
2. quadratic
3. cubic
4. rational
5. radical
Answer: the type of function is linear.
I hoped this helped!
mark me the brainliest :)
testing for within × within and between × within moderation using random intercept cross-lagged panel models
Testing for within × within and between × within moderation using random intercept cross-lagged panel models "allow measurement decomposition into between- & within components and have thus are becoming famous for testing developmental hypotheses."
What is cross-lagged panel models?Cross lagged panel design is a form of structural equation model in which data is gathered at a number of points in time. It is primarily used to assess causal relationships (which may be bi-directional) in a non-experimental setting, where variables are not controlled but simply recorded.
According to cross-lagged panel design analysis:
If rX1Y2 is'significantly different' from zero, we can draw the conclusion that X is the cause of Y.If rX2Y1 is significantly distinct from zero, we can deduce that Y is the cause of X.If they are both substantially different from zero, we deduce that X causes Y and Y causes X. If they are both equal, we reach the conclusion that they do not cause each other but instead are both affected by a third variable.If we understand that X and Y are correlated but with us data shows no conclusive correlation (neither rX1Y2 or rX2Y1 are significantly different from zero), it is possible that our time lag was just too short (or too long) to enable causal influences to operate, and we need to redesign our experiment.
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Which table has a constant of proportionality between y and x of 0.3?
Table C has a constant proportionality between y and x of 0.3.
A constant is an expression-unchanging value or number. It always has the same value.
In mathematics, proportionality denotes a linear relationship between two quantities or variables. Both quantities increase in size when one double, and both decrease in size when one drops to a tenth of its original value.
The answer is the same as the one in the y column when you multiply the x number in table C by 0.3. The value that remains constant in the ratio is the proportionality constant. It is evident that table C is accurate because when you multiply each value in the x column by 0.3, the result is always the value in the y column.
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Jim picks a number. he doubles that number, then adds 5, and gets 41 as his result. what was the original number jim picked?
Answer: 18
Step-by-step Explanation:
Subtract: 5 from 41 | 41-5= 36
Divide: by 2 | 36/2= 18
Answer:18
Step-by-step explanation:
SUBTRACT41 FROM 5
THAT GIVES YOU 38
THEN DIVIDE 38/2 AND IT WILL GIVES 18
Which of these is an example of a systematic random sample?
a.) selecting all the students in a class of 30.
b.) selecting 4 balls from a bag containi
An example of a systematic random sample will be selecting 4 balls from a bag containing. The correct option is B.
What is systematic random sampling?A probability sampling technique called systematic sampling involves picking people from the population at regular intervals, such as every 15th person on a list of the population. This can mimic the advantages of straightforward random sampling if the population is arranged in random order.
Here we have two options a.) selecting all the students in a class of 30.
b.) Select 4 balls from a bag containing 30 balls.
Out of the two options, a systematic random sample will be Select 4 balls from a bag containing 30 balls.
Therefore, the correct option is B.
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Which of the points a(8, 0, 6), b(9, 6, 2), and c(2, 9, 3) is closest to the yz-plane? which point lies in the xz-plane?
The point closest to -
the yz-plane is c(2, 9, 3).the xz-plane is a(8, 0, 6).What is a plane in 3-D?A plane is a two-dimensional flat surface that can extend indefinitely. A plane would be the two-dimensional equivalent of a point with zero dimensions, a line with one dimension, and three-dimensional space.
The equation is written on a three-dimensional plane is;ax+by+cz+d=0,
where minimum one number out of a, b, and c must be non-zero.
In 3D coordinate space, a plane is defined by a point and a vector perpendicular to the plane.Now, as per the question;
A point (x, y, zdistance )'s from the yz plane is equal to |x|.
As a result, for small |x|, the point would be closest to the yz plane.
C does have the smallest among A, B, and C that is |x| = 2.
Thus, c point is closest to yz-plane.
If the point is in the xz-plane, after which y equals 0.
Only A has a y value of zero.
As a result, A is in the xz-plane.
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Practice & Problem Solving C 8. 8. Leveled Practice Find the rational approximation of V15. a. Approximate using perfect squares.
please help, I need answers asap due tonight
The approximation for the square root of 15 is given as follows:
9 < 15 < 16.3 < sqrt(15) < 4.How to approximate a square root by perfect squares approximation?To approximate the square root of a number x by perfect square approximation, we have to find two numbers:
The greatest integer less than x that is a perfect square, which we call a.The smallest integer greater than x that are perfect squares, which we call b.Then, the square root of x will be on a compound interval between a and b.
For this problem, we have that:
3² = 9.4² = 16.Hence, the approximation for the square root of 15 is given as follows:
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Classify the angle as acute , obtuse , right , or straight
Answer:
1. acute
2. right
3. straight
Step-by-step explanation:
ugfgvthgrfbuyjhdvyrdhsdgfbythdfgjhmhjilk.l
Answer:
yo same
Step-by-step explanation:
ur lookin pretty shreksy
The price for us postage stamps has increased over the years. since 1975, the price has increased from $0.13 in 2005 at a rate that is approximately linear. write a linear model for the price of stamps during this time period. let p represent the price and t represent the number of years since 1975.
It is found that Linear Equation: P = 0.008T + 0.13 and Price of stamp in 2015 = $0.45
What is a linear equation?A linear equation is an equation that has the variable of the highest power of 1. The standard form of a linear equation is of the form Ax + B = 0.
From 1975 to 2005, 30 years, the price increased from 0.13 to 0.37.
This means the rate of change (slope) = 0.24/30 = 0.008
This means Price changed (increased) by $0.008 per year.
Slope = 0.008
The y-intercept (P) is at the starting point which is at T = 1975; the price was 0.13. Hence y-intercept is 0.13
The equation of a line is given as;
P = mT + b
Where m is the slope and b is the y-intercept.
Now, we can write the linear model equation as;
P = 0.008T + 0.13
Then to find the price of stamp in 2015, we see that this is 40 years later after 1975. So we plug in 40 into T in the equation found above;
P = 0.008(40) + 0.13
P = $0.45
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If 8 people consisting of 4 couples are randomly arranged in a row, find the probability that no person is next to their partner.
The Probability that no person is next to their partner is 104/105.
Probability of an event E represented by P(E) can be defined as (The number of favorable outcomes )/(Total number of outcomes).
Permutations is defined as arrangement of elements/objects in a particular way.
According to the question ,
8 people can be arranged in 8! ways = 40320ways
First let us find the probability that person is next to their partner.
4 couples can be arranged in 4! ways
and the couple itself can be arranged in 2! ways
Since there are 4 couples ,
Number of arrangement = [tex]4!(2!)^{4}[/tex]
=24x16
=384 ways
Probability that person is next to their partner = [tex]\frac{384}{40320} =\frac{1}{105}[/tex]
and the probability that no person is next to their partner is [tex]1-\frac{1}{105} =\frac{104}{105}[/tex].
Therefore , the probability that no person is next to their partner is [tex]\frac{104}{105}[/tex].
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-x-12-3 or -62-x-1< need help with this please
Answer is x ≤ - 4
According to the question ,
- 3 ≥ x + 1
rearrange the equation
x + 1 ≤ - 3
x ≤ - 4 {solution of inequality}
Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign
While graphing inequalities, we have to keep the following things in mind.
For graphing inequalities with two variables, you will have to plot the "equals" line and then, shade the appropriate area. There are three steps:
Write the equation such as "y" is on the left and everything else on the right.
Plot the "y=" line (draw a solid line for y≤ or y≥, and a dashed line for y< or y>)
Shade the region above the line for a "greater than" (y> or y≥) or below the line for a "less than" (y< or y≤).
If the endpoint is included (i.e., in case of ≤ or ≥) use a closed circle.
If the endpoint is NOT included (i.e., in case of < or >), use an open circle.
Use open circle at either ∞ or -∞.
Draw a line from the endpoint that extends to the right side if the variable is greater than the number.
Draw a line from the endpoint that extends to the left side if the variable is lesser than the number.
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5. Find the area of each parallelogram. A= square centimeters B= square centimeters C= square units
4 cm is the height of the parallelogram.
What in mathematics is a parallelogram?
A quadrilateral with the opposing sides parallel is called a parallelogram (and therefore opposite angles equal). A parallelogram with all right angles is known as a rectangle, and a quadrilateral with equal sides is known as a rhombus.The area is always given by squared units and never by single units!
The area of a parallelogram is given by the equation
A = b * h
b is the base length of the parallelogram
h is the height of the parallelogram
And so, plugging in our given values, we get
24cm² = 6 cm . h
h = 24 cm/6cm
h = 4 cm
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The complete question is -
The area of a parallelogram is 24 centimeters and the base of the parallelogram is 6 centimeters. What is the height of the parallelogram?
Kehlani invests money in an account paying simple interest. No money is added or removed from the investment. To find the balance after a year, she multiplies her current balance by 1.072. What percent simple interest does the account earn per year?
The percent of simple interest that the account has will be 7.2%.
How to calculate the rate?From the information, Kehlani invests money in an account paying simple interest. No money is added or removed from the investment. To find the balance after a year, she multiplies her current balance by 1.072.
The percent of simple interest that the account has will be:
= 1.072 - 1
= 0.072
= 7.2%
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-7ab^2 + 9a^3b
factor it please
Step-by-step explanation:
= -7ab² + 9a³b
= -7b × ab + 9a² × ab
= ab × (-7b + 9a²)
Hat app is similar to game dvr but captures screenshots and generates a report of all actions taken?
The ideal substitute is OBS Studio, which is both open source and free. Simple Screen Recorder, Camtasia Studio, are other fantastic applications.
What is Windows Gamebar?
The Game Bar in Windows 10 is a feature made to make it easier for players to record gameplay, stream it online, take pictures, and use the X box app quickly. Although it is a useful tool, not everyone needs to use it or wants to have it on their PC.Is audio captured by Windows game capture?
When recording games, you can change the audio settings listed below: When recording a gaming clip, you can choose to record audio as well. When recording a game, you can decide whether you want to also capture the system and microphone audio.Learn more about Windows game
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A point located on the second hand of a large clock has a radial acceleration of 0.09 cm/s2. how far is the point from the axis of rotation of the second hand?
The distance of point from the axis of rotation of the second hand is 8.2 cm.
Here,
A point located on the second hand of a large clock has a radial acceleration of 0.09 cm/s2.
We have to find the distance of point from the axis of rotation of the second hand.
What is Rotation?
The circular motion of an object around the circle is called Rotation.
Now,
Let us consider the equation for the centripetal acceleration given by;
[tex]a_{c} = \frac{v^{2} }{r}[/tex]
where, v is the velocity and r is the radius.
Now, the velocity can be expressed as;
[tex]v = wr = \frac{2\pi r}{T}[/tex]
where, ω is the angular velocity and T is the period.
Solving for the radius using these equations given as;
[tex]a_{c} = \frac{v^{2} }{r}\\\\v^{2} = a_{c} r\\\\(\frac{2\pi r}{T} )^2 = a_{c} r\\\\\frac{4\pi ^{2}r^{2} }{T^{2} } = a_{c} r\\\\r = \frac{T^{2} a_{c} }{4\pi ^{2} } \\\\r = \frac{(60s)^2(0.09 cm/s^2)}{4\pi ^{2} } \\\\r = 8.2 cm[/tex]
Hence, The distance of point from the axis of rotation of the second hand is 8.2 cm.
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MATHMATICAL CONNECTIONS (IM2) : Write a polynomial that represents the area of the square
[see image]
Answer:
[tex]49n^2-70n+25[/tex]
Step-by-step explanation:
Since one side of the square is (7n-5), the area of the square must be [tex](7n-5)^2[/tex]. Simplifying we get [tex]49n^2-70n+25[/tex].
find the midpoint of each line segment. WILL GIVE BRAINLIEST!!
one on right is 2,-2 and one on left is -1,1
In the figure below, m1= (x+24)° and m2=5x°,
Find the angle measures.
12
Measure of angle 1 is 50° and that of angle 2 is 130°
The sum of all the angles on a straight line is equal to 180°.
Here, we are given two angles ∠1 and ∠2
Also, we are given that
m∠1 = (x+24)°
and m∠2 = 5x°
As we can see from the given figure, ∠1 and ∠2 lie on a straight line
⇒ m∠1 + m∠2 = 180
⇒ (x+24) + 5x = 180
x + 24 + 5x = 180
x + 5x + 24 = 180
6x + 24 = 180
6x = 180 - 24
6x = 156
x = 156/ 6
x = 26
Therefore,
m∠1 = 26 + 24
= 50
and m∠2 = 5(26)
= 130
Thus, the measure of the two angles is 50° and 130°
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Your question was incomplete. Check for the missing figure below.
At the beginning of the day, the temperature is -15oF. As the sun comes out, it warms to a high of 8oF. What is the difference in temperature throughout the day?
PLEASE ANSWER FAST IM TIMEDDDD!!!!
Answer:23
Step-by-step explanation: take -15 and negate it which will set you at 15 then add 8 will put you at 23degrees
My question is what is 3+(-7)
Answer:
The answer is -4.
Step-by-step explanation:
Whenever you're adding a positive number to a negative number you are basically subtracting. So 3+-7 will be -4.
If a 3ft stick in the ground cast a shadow of 1. 2ft what is the height of a tree that cast a shadow that is 14. 16
Answer: The height of the tree is 35.4 ft.
Step-by-step explanation:
14.16/1.2 = 11.8
3 * 11.8 = 35.4
Which is a factor of 6z^2 -3z-2+4z?
A:2z+1
B:3z-2
C:z+2
D:2z-1
Answer:
D. (2z-1)
Step-by-step explanation:
If you solve 6x^2-3z-2+4z you should get (2z-1)(3z+2). Which automatically gives you a factor of 2z-1.