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Oxana [17]
3 years ago
15

Question

Mathematics
1 answer:
9966 [12]3 years ago
5 0

Answer:

378 Cubic feet

Step-by-step explanation:

Given a rectangular prism shaped shed:

Area of the floor of the shed = 63 square feet.

Let the width of the shed=w

The length of the shed is 2  feet greater than the width.

Therefore: Length =w+2

Base Area = Length X Width

So: w(w+2)=63

w^2+2w-63=0\\w^2+9w-7w-63=0\\w(w+9)-7(w+9)=0\\(w-7)(w+9)=0\\w=7 ft, w\neq -9

Width =7ft

Length =9 ft

The height is 1 foot less than the width.

Height =7-1=6 ft

Volume of a rectangular prism = Base Area X Height

=63 X 6

=378 cubic feet

Therefore, the volume of the shed is 378 cubic feet.

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gregori [183]

Answer:

17.9  m/s

Step-by-step explanation:

Volume of the slick =  0.5 x π r² h--------------------------------- (1)

Where r = radius of slick

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If 0.5m³ of oil leaked, then the radius of the semicircular slick can be calculated from equation (1)

V  =  0.5 x π r² h

0.5=  0.5 x  π x  r² x 10⁻⁶

r²   =  10⁶/ π

r =     10³/√π

dV/dt =   πrh dr/dt  + 0.5π r² dh/dt----------------------------------- (2)

Asumming the film thickness is constant , equation (2) becomes

dV/dt =   πrh dr/dt-------------------------------- (3)

dV/dt = 0.1m³/day

r=  10³/√π

dr/dt= rate of expansion of the slick

Substituting  into (3);

0.1 =  π x 10³/√π x 10⁻⁶ x dr/dt

dr/dt = 0.1  x 10⁶/ ( π x 10³/√π)

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3 years ago
A consumer report counted 72 low-quality, 112 medium-quality, and 711 high-quality computers based on a random sample. The repor
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Answer:

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Step-by-step explanation:

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112 / 72 + 112 + 711

High = number of high quality products over the total number of products

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If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

7 0
2 years ago
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If there are 4 dogs and they each eat 2 pounds of food each day. Then, all together there are 8 pounds of food getting eaten each day. You will want to divide 456 by 8.

456/8= 57 days.

456 punds of dog food will last 57 days for 4 dogs.

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