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2 years ago

Exercise #1: A rectangular, right prism (or box) has a length of 8 inches, a width of 4 inches, and a height of 5

Mathematics

1 answer:

kipiarov [429]2 years ago

6 0

Step-by-step explanation:

(a) What is the area of the base of the box? Use appropriate units.

A=lw

A=8(4)

A=32 inches

(b) What is the volume of the box? Use appropriate units. How can

you use your answer to part (a) to determine the volume?

V=lwh

V=8(4)(5)

V=160 inches

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3 years ago

Hector's service club is raising money by wrapping presents in the mall. The function f\left(x\right)=3xf(x)=3x describes the am

mestny [16]

Given:

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2 years ago

Sofia hits a softball straight up. the equation h= -16t^2 + 90t models the height h, in feet, of the ball after t seconds. How l

andrezito [222]

It is in the air 5.625 seconds.

Using the quadratic formula,

$t=\frac{-b\pm \sqrt{b^2-4ac}}{2a}
\\
\\=\frac{-90\pm \sqrt{90^2-4(-16)(0)}}{2(-16)}
\\
\\=\frac{-90\pm \sqrt{8100-0}}{-32}
\\
\\=\frac{-90\pm \sqrt{8100}}{-32}=\frac{-90\pm90}{-32}
\\
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\\
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0 is when the ball is first launched, 5.625 is when it hits the ground again.

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3 years ago