Answer:
Uh Lainey spends 7.20$
Step-by-step explanation:
3.2/4 is 1 book price, 0.8 is one book price, so 9 books price is 0.8*9 which is 7.2
Evaluate.
(-7) + (-14)=
Answer: -21
Step-by-step explanation: hope you have a good day
−7−14=−7+−14=−21
what is the midpoing of (-5,4) and (7,-5)
Answer:
(1,-1/2)
Step-by-step explanation:
Add both x values and divide by 2
Add both y values and divide by 2
( -5+7 )/2 = 1
(4 - 5)/2 = -1/2
(1,-1/2)
In the figure, angles ABC and AST are right angles. If AC = 35, AT = 11, and BT = 9, then what is AS?
AS=6.28
First, draw a line joining C and T;
Two triangles TBC and TSC are formed;
Also, AC=35, AT=11,BT=9;
AB=AT+BT=11+9=20
Using pythagoras theorem;
AB² + BC² = AC²
BC²=35²-20²=825
Using pythagoras theorem on triangle TBC;
BC² + TB²= CT²
825 + 9²=CT²
CT²=906;
In triangle CST, using pythagoras theorem;
CS²+ST²=CT²=906 -1
In triangle AST, using pythagoras theorem;
AS²+ST²=AT²=11²=121 -2
Subtract 1 from 2;
AS²+ST²-CS²-ST²=121-906
AS²-CS²=-785
AS²-(AC-AS)²=-785
AS²-(35-AS)²=-785
AS²-AS²-35²+70AS=-785
AS=6.28
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-5/6x-(x-1)=1/4(-x+80)
Answer:
x = - 12
Step-by-step explanation:
- [tex]\frac{5}{6}[/tex] x - (x - 1) = [tex]\frac{1}{4}[/tex] (- x + 80) distribute parenthesis on left side by - 1
- [tex]\frac{5}{6}[/tex] x - x + 1 = [tex]\frac{1}{4}[/tex] (- x + 80)
multiply through by 12 ( the LCM of 4 and 6 ) to clear the fractions
- 10x - 12x + 12 = 3(- x + 80) ← distribute parenthesis by 3
- 22x + 12 = - 3x + 240 ( add 3x to both sides )
- 19x + 12 = 240 ( subtract 12 from both sides )
- 19x = 228 ( divide both sides by - 19 )
x = - 12
Suppose+14%+of+the+listeners+of+a+radio+station+listen+to+it+while+they+are+at+work.+what+is+the+approximate+standard+deviation+of+the+sampling+distribution+of+the+proportion+for+samples+of+size+85?
The approximate standard deviation of the sampling distribution of the proportion is 3.8%.
What is standard deviation?A standard deviation (or) is a measure of how widely distributed the data is in reference to the mean.
A low standard deviation indicates that data is clustered around the mean, whereas a high standard deviation implies that data is more spread out.
Now, as per the questions;
Whenever the population size is so very large, the PQ/N factor approaches zero, and the standard deviation equation becomes:
σp = √( PQ/n)
We don't know how so many listeners this same radio station has in this case, but we can assume it's a large number.
P = probability of listening at work, is 14% or 0.14
Q = probability of not listening at work, is (100- 14)% = 86% = 0.86
N = sample size, is 85
The sample standard deviation is then
σp = √(14×.86/85)
σp = 0.0376
σp = 3.8% (approximately)
Therefore, the approximate vale of the standard deviation is found to be 3.8 %.
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The correct question is-
If 14% of the listeners of a radio station listen to it while they are at work, what is the approximate standard deviation of the sampling distribution of the proportion for samples of size 85?
Henry predicted whether he got answers right or wrong in his 50 question exam.
he identified the 37 questions he thought he got right.
it turns out that henry got 5 questions wrong that he thought he got correct and he only got 3 of the questions wrong he had predicted.
what is the percentage accuracy he had with predicting his scores?
The percentage accuracy he had with predicting his scores is 90%.
Here,
Given that;
Henry predicted whether he got answers right or wrong in his 50 question exam. That is,
In total, there are 50 questions.
Of the ones he got right, he identified 30 right.
Of the ones he got wrong, he identified 15 correctly.
We have to find; the percentage accuracy he had with predicting his scores.
What is Percentage?
A percentage is a number or ratio expressed as a fraction of 100.
Now,
The percentage of a relative to b is given by:
In total, there are 50 questions.
Of the ones he got right, he identified 30 right.
Of the ones he got wrong, he identified 15 correctly.
Hence, since he identified 45 out of 50 correctly:
[tex]P = \frac{x}{y} *100[/tex]
[tex]P = \frac{45}{50} *100[/tex]
[tex]P = 90[/tex]
So,
The percentage accuracy he had with predicting his scores is 90%.
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Rewrite the expression with rational exponents as a radical expression. 7 times x to the two thirds power 9 times the cube root of x to the power of 2 7 times the square root of x to the power of 3 cube root of the quantity 9 times x to the power of 2 square root of the quantity 9 times x to the power of 3
According to the given statement:
Equation one:
(7x)[tex]\frac{2}{3}[/tex]
Equation two:
√(9x)²
Equation three:
√(7x)³
Equation four:
∛(9x)²
Equation five
√(7x)³
What radical expression would that be?Square-root-containing expressions are known as radical expressions. The radical symbol's "radicand" is a number or expression. A radical equation is one that uses radical expressions as the radicands for variables.
According to the given data:The expression's root is represented by the symbol known as the radical. n√x.
The following radical expression can be used to write the given statement:
Equation one:
(7x)[tex]\frac{2}{3}[/tex]
Equation two:
√(9x)²
Equation Three:
√(7x)³
Equation four:
∛(9x)²
Equation Five:
√(7x)³
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I understand that the question you are looking for is:
Rewrite the expression with rational exponents as a radical expression.
7 times x to the two thirds power9 times the cube root of x to the power of 2 7 times the square root of x to the power of 3cube root of the quantity 9 times x to the power of 2square root of the quantity 9 times x to the power of 3which of the following defines infinite sequence?
Answer:
An infinite sequence is a list or string of discrete objects, usually numbers, that can be paired off one-to-one with the set of positive integer s {1, 2, 3, ...}. Examples of infinite sequences are N = (0, 1, 2, 3, ...) and S = (1, 1/2, 1/4, 1/8, ..., 1/2 n , ...)
HOPE IT'S HELPS YOUDirections: Use the distributive property to multiply the following binomials. Write your answer in standard form!
a.) (x+5)(x-2)
Answer:
x^2 +3x -10
Step-by-step explanation:
(x+5)(x-2)
x^2 +5x -2x -10
x^2 +3x -10
(9x1000) +2+ (1x0.1)+ (4x0.01) +(6x0.001)
Write as decimal
Step be step please
Will give brainliest
Answer: 9002.146
Step-by-step explanation:
(9x1000) +2+ (1x0.1)+ (4x0.01) +(6x0.001)=
(9000)+2+(0.1)+(0.04)+(0.006)=
9002+0.1+0.04+0.006=9002.146
first person 2 answer will give u brainliest need to submit by 2 nite :)
Two angles are Complementary, if the measure of one of the angles is 66.7 degrees what is the measure of the other angle? Answer to the first decimal place, IE 79.5.
Answer:
probly 79.5
Step-by-step explanation:
i d k
Blinn College charges $166 per credit hour, you plan to take 13 hours per semester, how much will your tuition cost for a full academic year?
Answer:
$4,316
Step-by-step explanation:
Semester one: $166 per credit times 13 hours = $2,158
Semester two: $166 per credit times 13 hours = $2,158
Cost for semester one plus semester two = $4,316
Benson was inspired after reading a book on the Boston Marathon and decided he wanted to become a runner. On his first day of running, he weighed 197 pounds. After just six months of running, he weighed 181 pounds. What is the absolute change in Benson's weight over the first six months of his running journey?
Answer:16
Step-by-step explanation:
subtract the old number by the new number
197-181=16
Find the midpoint given the endpoints:
(_________ , _________)
Question 2 options:
Blank # 1
Blank # 2
Answer:
- 4+23e
Step-by-step explanation:
Please help!!!! The question and answers are in the photo!!!!
Answer: x=5
Step-by-step explanation:
|x + 2| = 7
|5 + 2| = 7
|7| = 7
|7| = 7
which point is the solution-2x +3y>1 -5x+6y..
A point is the solution of the inequality expression given as: -2x + 3y > 1 - 5x + 6y is (0, -2/3)
How to determine the point is the solution?The inequality expression is given as:
-2x + 3y > 1 - 5x + 6y
Collect the like terms in the above expression
So, we have:
3y - 6y > 1 + 2x - 5x
Evaluate the like terms in the above expression
So, we have:
-3y > 1 - 3x
Divide both sides by -3
y < -1/3 + x
Let x = 0
So, we have
y < -1/3
This means that a point in the solution is
(x, y) = (0, < -1/3)
-2/3 < -1/3
So, we have
(x, y) = (0, -2/3)
Hence, a point is the solution of the inequality expression given as: -2x + 3y > 1 - 5x + 6y is (0, -2/3)
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Joe works as a pianist in a local restaurant. He makes $8.50 an hour. He was able to work 45 hours last week. How much money did he make that week?
Answer: $382.50
Step-by-step explanation:
8.50 x 45 = 382.50
The width of a rectangle measures
(t - 9u) centimeters, and its length
measures (4t - 4u) centimeters. Which
expression represents the perimeter, in
centimeters, of the rectangle?
The perimeter of the rectangle can be expressed as 10t - 26u centimeters.
What is perimeter?Perimeter is the total length of the outer boundary of a two-dimensional shape or a three-dimensional space. It is a measure of the length around the outside of an object or a space and is usually expressed in linear units, such as millimeters, centimeters, meters, or kilometers.
The perimeter of a rectangle is the sum of the lengths of all four sides. Since the width and length of the rectangle are given as (t - 9u) centimeters and (4t - 4u) centimeters, respectively, the perimeter of the rectangle can be expressed as:
Perimeter = 2(t - 9u) + 2(4t - 4u)
Perimeter = 2t - 18u + 8t - 8u
Perimeter = 10t - 26u centimeters
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A fish swims 27 feet below sea level
Based on the information above, it can be inferred that the diver is at a depth of 36 ft below water level.
What is the final elevation of the diver?To calculate the final elevation of the diver we must take into account the depth at which he was at the beginning and the changes he made in his position.
Start point: 52 feet below water level.Modifications: Ascended 16 feet.To calculate his current position we must subtract the number of feet he ascended from the number of feet he was at at the beginning:
52ft - 16ft = 36ftBased on the above, it can be inferred that when the diver ascended to see a school of fish, he was 36 ft below the surface of the water.
Note: This question is incomplete because there is some information missing. Here is the complete information:
A scuba diver is swimming at an elevation of 52 feet below sea level. She sees a school of fish and rises 16 feet to watch the fish. What is her elevation now? A fish swims 27 feet below.
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If the nominal rate of interest is 2 percent, and the expected inflation rate is 10 percent, the real rate of interest is :_____.
a. 2 percent.
b. 8 percent.
c. 10 percent.
d. 12 percent.
The real rate of interest is 8 percent.
What is nominal rate of interest?In finance and economics, the nominal interest rate or nominal rate of interest is either of two distinct things: the rate of interest before adjustment for inflation; or, for interest rates "as stated" without adjustment for the full effect of compounding.
Given:
nominal rate of interest= 2%
expected inflation rate = 10 %
We know,
nominal rate = real interest rate + inflation rate
and, real interest rate= nominal rate - inflation rate
then,
real rate interest = 2-10
real rate interest = -8%
Hence, the inflation rate is greater than the nominal interest rate as it is -8%
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The part of the drawing that shows information about scale, the date of the last revision, and the drawing number is the _____.
The part of the drawing that shows information about scale, the date of the last revision, and the drawing number is the balloon framing.
Where is a drawing's scale often indicated?
Here, the scale may be shown on the drawing's axes or real distances may be displayed on the axes. In other situations, a scale could employ multiple measuring units. The air velocity, for instance, might be represented by the length of an arrow on an air flow diagram, where 1 cm = 0.1 m/s.What does balloon framing mean?
In contrast to platform framing, where each floor is framed independently, balloon framing uses studs (vertical members) that stretch the entire height of the building (often two storeys) from the foundation plate to the rafter plate.
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On Wednesday, a local hamburger shop sold a combined total of 544 hamburgers and cheeseburgers. The number of cheeseburgers sold was three times the number of hamburgers sold. How many hamburgers were sold on Wednesday?
Answerham=136
Step-by-step explanation:
ham=x,,cheese=3x....=544...4x=544 which makes x to be 136 which is the no of hamburgers
Evaluate the function.
ƒ(x) = −x² − 4x – 12
Find ƒ(-7)
Given ~
[tex] \tt \: f(x) = - {x}^{2} - 4x - 12[/tex]
[tex] \: [/tex]
put the value of x = -7 in given function ~
[tex] \tt \: f( - 7) = - ( { - 7})^{2} - 4( - 7)- 12[/tex]
[tex] \: [/tex]
[tex] \tt \: f( - 7) = - 49 +28 - 12[/tex]
[tex] \: [/tex]
[tex]\tt \: f( - 7) = - 21 - 12[/tex]
[tex] \: [/tex]
[tex] \underline{ \boxed{ \tt \red{ f( - 7) = -33}}}{ \green ✓}[/tex]
[tex] \: [/tex]
hope helps ~
PLEASE HURRY UP
Lamar needs to buy plastic forks. Brand A has a box of 42 forks for $2.17. Brand B has a box of 48 forks for $3.97.
Find the unit price for each brand. Then state which brand is the better buy based on the unit price.
Round your answers to the nearest cent.
Answer:
A = .05 and B = .08 so A is the better buy
Step-by-step explanation:
In each case, divide total cost by number of units to get unit cost.
please help
15 points
need by end of today
Answer:
19. B
20. G
Step-by-step explanation:
19. De pendant Variable is the variable that changes relative to some other variable. In other words its dependent on some other variable and its value changes with that other variable (the independent variable)
In this case the daily cost of the rental car is dependent on the miles driven.
20. The pair will be on the graph if it satisfies the given equation. In other words if i plug in a given x or y, i should get the same x or y.
In this case, for F, if i plug in x=1, the equation gives me y=12 which is not the value of the ordered pair. It is the value of G, thus G is on the graph
In a sale, all normal prices are reduced by 20%
In the sale, the normal price of a tablet computer is reduced by 79 euros.
Work out the normal price of the tablet computer.
list the variables and constants in this expression:
3x+6
Answer:
The variable is x and the constant is 6. The coefficient of the variable is 3.
Step-by-step explanation:
Solve 3.78 + (−13.2). anyone know the answer :,)
Answer:
-9.42
Step-by-step explanation:
Solve the system of equations algebraically.
4x - 3y = 6
6x - 5y = 6
Answer: x=6 y=6
Step-by-step explanation:
[tex]\displaystyle\\\left \{ {{4x-3y=6} \atop {6x-5y=6}} \right.\\[/tex]
Since the right parts of the equation are equal, therefore the left parts of the equation are also equal:
[tex]4x-3y=6x-5y\\4x-3y+5y=6x-5y+5y\\4x+2y=6x\\4x+2y-4x=6x-4x\\2y=2x\\[/tex]
Divide both parts of the equation by 2:
[tex]y=x\\Hence,\\4x-3x=6\\x=6\\Thus,\\x=y=6[/tex]
Identify the type of data (qualitative/quantitative) and the level of measurement for the assets of respondents in a survey. explain your choice.
Assets of respondents in a survey is a quantitative data and the level of measurement is a ratio scale.
What is a Qualitative and a Quantitative Data?Qualitative properties are properties that are observed and can generally not be measured with a numerical result.
Examples of quantitative data include, number of students in a class, weight of students in a class, etc.
Quantitative data is the value of data in the form of counts or numbers where each data set has a unique numerical value. This data is any quantifiable information that researchers can use for mathematical calculations and statistical analysis to make real-life decisions based on these mathematical derivations.
Examples of qualitative data include hair color, religion, nationality, etc.
Thus, assets of respondents in a survey is a quantitative data and the level of measurement is a ratio scale.
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