3 years ago

What is the simplest form of this expression? -5(-b+2)+7

Mathematics

1 answer:

Ratling [72]3 years ago

6 0

hope it helps you.....

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help me wit these 3 questions plz. A cone has a base radius of 7 centimeters and a height of 21 centimeters. What is the volum

poizon [28]

1. Cone

$r=7cm$
$h=21cm$

$V= \frac{\pi*r^2*h}{3}=\frac{\pi*7^2*21}{3}=7^2*7*\pi=7^3\pi=343{\pi}cm^3$

Answer: D

2. Cylinder

$r=5ft$
$h=16ft$

$V= \pi*r^2*h=\pi*5^2*16=25*16\pi=400\pi ft^3$

Answer: A

3.Pyramid

In this case it will be

$V= \frac{a*b*h}{3}$

$a=9ft$
$b=4ft$
$h=12ft$

$V= \frac{4*9*12}{3}=4*3*12=144 ft^3$

Answer: B

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3 years ago

Can someone help with questin 1 and 2.

aleksandrvk [35]

Answer: are you single

Step-by-step explanation:

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2 years ago

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saveliy_v [14]

Answer: ummm what

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2 years ago

Can some one help me Please

USPshnik [31]

Use area formula (length x width)
42 x 25.5 = 1,071

Divide by total cost of wall paper

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2 years ago

Nrite the equation of the line whose slope is 2 and y intercept is -1.

Marysya12 [62]

Answer:

y=2x-1

Step-by-step explanation:

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2 years ago