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BigorU [14]
3 years ago
10

Jethro wants a swimming pool in his backyard, so he digs a rectangular hole with dimensions 40 feet long, 20 feet wide, and 5 fe

et deep. How many cubic feet of water will the pool hold?
A) 65 cubic feet of water B) 8000 cubic feet of water C) 4000 cubic feet of water D) 40,000 cubic feet of water
Mathematics
2 answers:
Goshia [24]3 years ago
5 0
First find the perimeter. Then take the depth of the pool and multiply it by the perimeter.
Hope this helps
Marina CMI [18]3 years ago
3 0
C) 4,000 cubic feet of water
Reason: 40x20x5
40x20=800
800x5=4,000
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Answer:

In the case of the second frame, the sides are not perpendicular to each other.

Step-by-step explanation:

A. The length (l) of the frame is 20 and width (w) is 15.

If the frame is a rectangular one, then diagonal (d) can be calculated from the Pythagoras Theorem asd^{2} = l^{2} + w^{2} = 20^{2} + 15^{2} = 625 = 25^{2}

⇒ d = 25 (Also given)

So, the frame is rectangular one.

B. The length (l) of the frame is 22 and width (w) is 10.

If the frame is a rectangular one, then diagonal (d) can be calculated from the Pythagoras Theorem asd^{2} = l^{2} + w^{2} = 22^{2} + 10^{2} = 584

⇒ d = 24.166 ≠ 24 (24 is the given value)

So, the frame is not a rectangular one.

C. The length (l) of the frame is 21 and width (w) is 20.

If the frame is a rectangular one, then diagonal (d) can be calculated from the Pythagoras Theorem asd^{2} = l^{2} + w^{2} = 21^{2} + 20^{2} = 841 = 29^{2}

⇒ d = 29 (Also given)

So, the frame is rectangular one.

Therefore, in the case of the second frame, the sides are not perpendicular to each other. (Answer)

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3 years ago
Alex bought 3 tacos for $4.00. How much would she have to pay for 10 tacos at this rate?
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Answer:

It increases the mean value of the prizes

Step-by-step explanation:

If you order the numbers from the lowest to the highest, the median is the number placed in the middle of the ordered list. In this case, there are values repeated many times (there are 100 values, $1 is repeated 44 times and $5 is repeated 25 times, so $5 is the mean), then the presence of a high value with only one presence doesn't modify this median.

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