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kumpel [21]
3 years ago
5

Find the product of 51 and -2.5.

Mathematics
2 answers:
yaroslaw [1]3 years ago
6 0
The answer is C because 51×-2=-102 and 51×-0.5=-25.5

So it -102+(-25.5) or C
tatyana61 [14]3 years ago
3 0

Answer:

The answer C

Step-by-step explanation:

Just answer it and got it correct

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SOMEONE HELP ME ON THESE QUESTIONS
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Dima020 [189]

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vichka [17]
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2 years ago
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Find the work (in ft-lb) required to pump all the water out of a cylinder that has a circular base of radius 7 ft and height 200
Virty [35]

Answer:

<em>work done is equal to 384279168 lb-ft</em>

<em></em>

Step-by-step explanation:

The cylinder has a circular base of 7 ft.

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First, we find the volume of the water in the cylinder by finding the volume of this cylinder occupied by the water.

The volume of a cylinder is given as \pi r^{2} h

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and h is the height of the cylinder.

the volume of the cylinder = 3.142* 7^{2}*200 = <em>30791.6 ft^3</em>

Since the weight density of water is 62.4 lb/ft^3, then, the weight of the water within the cylinder will be...

weight of water = 62.4 x 30791.6 = <em>1921395.84 lb</em>

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The work done in pumping the water out of the container will be

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7 0
3 years ago
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