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sergiy2304 [10]
3 years ago
14

A swimming pool has a rectangular base 10 ft long and 20 ft wide. The sides are 4 ft high, and the pool is half

Mathematics
1 answer:
Lostsunrise [7]3 years ago
7 0

Answer:74880 ft.lb

Step-by-step explanation:

Given

Dimension of pool

base=10 ft

width=20 ft

height=4 ft

Pool is half filled

volume of Pool=10\times 20\times 2=400 ft^3

mass of water=\rho \times volume

mass=62.4\times 400=24,960 lb

This pool is in the form parallelepiped therefore average distance=\frac{4+2}{2}=3

Work = 249600\times 3=74880 ft.lb

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Which correctly describes a cross section of the right rectangular prism if the base is a rectangle measuring 15 inches by 8 inc
wlad13 [49]

Answer:

A cross-section parallel to the base is a rectangle measuring 15 inches by 8 inches.

A cross-section perpendicular to the base through the midpoints of the 8-inch sides is a rectangle measuring 6 inches by 15 inches.

A cross-section not parallel to the base that passes through opposite 6-inch edges is a rectangle measuring 6 inches by greater than 15 inches.

Step-by-step explanation:

the cross sections that are parallel and perpendicular will have the same measurements as the non-intersected sides. the last one will be a diagonal so the intersected edge is 6 and it creates a right triangle so it must be larger than 15 inches.

5 0
2 years ago
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There is a fraction equivalent to 6/7. The sum of the numerator and the denominator is 78. What is the fraction
Zanzabum
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3 years ago
The measure of an angle exceeds 3 times its supplement by 4. Find the measure of the angles.
Dafna11 [192]
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x+y=180, 3y+4+y=180, 4y+4=180
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(I am not a very good artist in this case:)

4 0
2 years ago
Chase answers 3/4 of his math questions correctly. There were 40 questions on the test.
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4 0
2 years ago
Can anyone show me how to divide 931/7
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(You go from left to right)
(Dividend is 931, divisor is 7)
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^Hope this helps.

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3 years ago
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