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3 years ago

WILL GIVE BRAINLIEST! NEED HELP THANK YOU!

Mathematics

1 answer:

Goryan [66]3 years ago

7 0

Answer:

C. Region B

Step-by-step explanation:

Since you already have the graphs of the lines, you only need to shade the proper area.

For the first equation, since y is less or equal than x-2 you have to shade the bottom part of the line.

For the second one, since y is more or equal to 1/4x+4 you have to shade the upper part of the line.

The answer is the region where the to shaded parts intersects each other.

Hope this helped you!

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The radius of a car wheel is 14 inches. how many revolutions per minute is the wheel making when the car is traveling at 60 mph.

Dovator [93]

Answer:

$721\ \frac{rev}{min}$

Step-by-step explanation:

step 1

Find the circumference of the wheel

The circumference of a circle is equal to

$C=2\pi r$

we have

$r=14\ in$

substitute

$C=2\pi(14)$

$C=28\pi\ in$

assume

$\pi=3.14$

$C=28(3.14)=87.92\ in$

step 2

$1\ mile=63,360\ inches$

$1\ hour=60\ minutes$

we have that

The speed of the car is 60 miles/hour

Convert the speed to inches/minute

$60\ \frac{mi}{h}=60(\frac{63,360}{60})=63,360\ \frac{in}{min}$

step 3

Remember that

The circumference of the wheel subtends one revolution

$1\ rev=87.92\ in$

Convert the speed to rev/min

$63,360\ \frac{in}{min}=\frac{63,360}{87.92}=721\ \frac{rev}{min}$

3 0

3 years ago

8x(12+7-9)-(4+10) what’s the answer

navik [9.2K]

Equation- 8x(12+7-9)-(4+10)

Answer- 80x−14

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2 years ago

What is 0,55 rational number

Maurinko [17]

Answer:

Answer and Explanation:

The decimal 0.55 is a rational number. It is a terminating decimal and all terminating decimals are rational numbers since they can be expressed by a..

Step-by-step explanation:

6 0

3 years ago

An unknown fraction is between 0 and 1. Which is true about the equivalent percent and decimal?

horsena [70]

Its equivalent percent is less than 100% and its equivalent decimal is less than 0.99 or less.

For example, 1/2 is a fraction between 0 and 1. Its percentage is 50%, which is less than 100%. Its decimal is 0.50, which is less than 1 or 0.99

3 0

3 years ago

Read 2 more answers

For the school concert band performance student tickets cost eight dollars each and adult tickets cost $12 each the seller is co

Alexxandr [17]

S + a = 300...s = 300 - a
8s + 12a = 3200

8(300 - a) + 12a = 3200
2400 - 8a + 12a = 3200
-8a + 12a = 3200 - 2400
4a = 800
a = 800/4
a = 200 <==== 200 adult tickets

s = 300 - a
s = 300 - 200
s = 100 <=== 100 student tickets

8 0

4 years ago