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slava [35]
4 years ago
6

Module 5 Proportions & Percent Need help ASAP

Mathematics
1 answer:
lora16 [44]4 years ago
6 0

Answer:

For #1 the answer is City C

Step-by-step explanation:

To find the value of anything with a sales tax simply multiply the cost by the tax.

$30 * 2.9%

$30 * .029

$0.87

Now that we have the sales tax, add it to the original cost.

$30 + $0.87 = $30.87

You can do this for each of the sales tax problems. Then compare the answers.

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2. Find an equation for the line with slope = 0 that passes through the point (-5, 7).
mel-nik [20]

Answer:

2. y = 7

3. x = 4

Step-by-step explanation:

Slope 0 is when the line is horizontal.. has a constant coordinate

(-5,7) lies on the line so the x-coordinate is 7

Equation: y = 7

A vertical line has all same x-coordinates.

Since (4,-2) is on the line, every point had x-coordinate of 4.

Equation: x = 5

5 0
3 years ago
Read 2 more answers
Finf the exact value of sin A and cos A where a = 9 and b = 10 and <c is a right angle
Katyanochek1 [597]
To solve for the longest side, the hypotenuse, you have to use the pythagorean theorem. It will be 10^2 + 9^2 = c^2. 100 + 81 =c^2. 
c^2 = 181 so c = sqrt(181).
to find sin of A do opposite/hypotenuse which gives you 9/sqrt(181)
to find cos of A do adjacent/hypotenuse which gives you 10/sqrt(181)

8 0
3 years ago
Read 2 more answers
Noah pagó $28 por los jeans después de usar el cupón. Cuál es el precio regular de el par de jeans?
eduard
It would do 40 percent or do 70
6 0
3 years ago
HELP ASAP PLEASE!!!! I’m really confused
8_murik_8 [283]
1. first option= 84
2. first option= (1+6)/7
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6 0
3 years ago
Find the two small as possible solutions ​
solong [7]

Answer:  \bold{b)\quad \dfrac{5}{6},\ \dfrac{25}{6}}

<u>Step-by-step explanation:</u>

12cos\bigg(\dfrac{2\pi}{5}x\bigg)+10=16\\\\\\12cos\bigg(\dfrac{2\pi}{5}x\bigg)=6\\\\\\cos\bigg(\dfrac{2\pi}{5}x\bigg)=\dfrac{1}{2}\\\\\\cos^{-1}\bigg[cos\bigg(\dfrac{2\pi}{5}x\bigg)\bigg]=cos^{-1}\bigg(\dfrac{1}{2}\bigg)

\text{Use the Unit Circle to determine when}\ cos=\dfrac{1}{2}\quad \rightarrow \quad\text{at}\ \dfrac{\pi}{3}\ and \ \dfrac{5\pi}{3}\\\\\\\dfrac{2\pi}{5}x=\dfrac{\pi}{3}\qquad and\qquad \dfrac{2\pi}{5}x=\dfrac{5\pi}{3}\\\\\\\bigg(\dfrac{5}{2\pi}\bigg)\dfrac{2\pi}{5}x=\dfrac{\pi}{3}\bigg(\dfrac{5}{2\pi}\bigg)\quad and\quad \bigg(\dfrac{5}{2\pi}\bigg)\dfrac{2\pi}{5}x=\dfrac{5\pi}{3}\bigg(\dfrac{5}{2\pi}\bigg)\\\\\\.\qquad \qquad \large\boxed{x=\dfrac{5}{6}\qquad and \qquad x=\dfrac{25}{6}}

6 0
3 years ago
Read 2 more answers
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