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2 years ago

Which of the following pairs of equations represents lines that are parallel?

Mathematics

1 answer:

vaieri [72.5K]2 years ago

3 0

Answer:

Step-by-step explanation:

The slope of the parallel lines have the same slope. So since D is the only answer choice with the same slope, the answer is D.

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3 years ago

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2 years ago

A hemispherical tank is filled with water and has a diameter of 14 feet. If water

tigry1 [53]

Answer:

$44,826.72\ \text{pounds}$

Step-by-step explanation:

Given that,

The diameter of a hemispherical tank= 14 feet

Radius, r = 7 feet

water

Water weighs 62.4 pounds per cubic foot.

We need to find the total weight of the water in a full tank to the nearest pound.

The volume of the hemisphere is given by :

$V=\dfrac{2}{3}\pi r^3\\\\V=\dfrac{2}{3}\pi \times (7)^3\\\\V=718.377\ \text{feet}^3$

If water weighs 62.4 pounds per cubic foot, it means

$V=718.377\times 62.4\\\\V=44,826.72\ \text{pounds}$

So, the total weight of the water is $44,826.72\ \text{pounds}$ .

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2 years ago

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3 years ago

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Step-by-step explanation:

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