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iris [78.8K]
2 years ago
7

Please help me with this question. will give brainliest I need this by today pleaseeeeeee its an assignment

Mathematics
2 answers:
coldgirl [10]2 years ago
6 0

Answer:

i would say 7

Step-by-step explanation:

Ivahew [28]2 years ago
6 0
I think it’s 7 also try it
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Which ratio correctly compares 150 mm to 60 cm?
deff fn [24]
1 to 4
150mm is the same as 15cm
15cm:60cm
both divisible by 15
1cm:4cm

1 to 4
6 0
3 years ago
Solve ( x - 2)( x + 7) =0
lara31 [8.8K]

Answer:

x = 2 or

x = -7

Step-by-step explanation:

(x - 2)(x + 7) = 0

x - 2 = 0

Add 2 to both sides

x - 2 + 2 = 2 + 0

x = 2

OR

x + 7 = 0

Subtract 7 from both sides

x + 7 - 7 = 0-7

x = -7

Therefore

x = 2 or

x = -7

6 0
3 years ago
Complete the paragraph proof.
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Answer:

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Step-by-step explanation:

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3 0
3 years ago
I don’t need the work just help
mixer [17]

Answer:

24cubic inches

Step-by-step explanation:

5 0
2 years ago
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.

The height of the cylinder is 200 ft

The weight density of water in the cylinder is 62.4 lb/ft^3

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

where, r is the radius,

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>

We know that the whole weight of the water will have to be pumped out over the height of cylindrical container. Also, we know that the work that will be done in moving this weight of water over this height will be the product of the weight of water, and the height over which it is pumped. Therefore...

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

==> (weight of water) x (height of cylinder) = 1921395.84 x 200

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

7 0
3 years ago
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