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ExtremeBDS [4]
3 years ago
10

a triangular pyramid has a volume of 840 cubic inches the triangular base has a base length of 20 inches and a height of 21 inch

es find the height of the pyramid
Mathematics
1 answer:
luda_lava [24]3 years ago
5 0
The answer is 2. You can find it by multiplying 20 and 21 giving you 420 and since 420 is half of 840 then all you would have to do is multiply 420 by 2 meaning the height is 2 since if you multiplied all in one it would be 20 x 21 x 2=840
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PilotLPTM [1.2K]

Answer:

Hello! answer: 48

Step-by-step explanation:

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3 years ago
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taurus [48]

Answer:

2(x+4)

Step-by-step explanation:

Tom ate four more pieces of fruit than Janet. Sylvia ate twice as many pieces of fruit as Tom. If x represents the number of pieces of fruit that Janet ate, write an expression to represent the amount of fruit that Sylvia ate.

Janet: (X)

Tom: X+4

Sylvia: 2(X+4)

I started by making listing out who did what. Janet is stated as clearly X, so that's all we need for her.

The question says Tom ate four more pieces of fruit than Janet. This is simple addition since you're adding four to Janet's amount of fruit. Therefore this makes Tom's equation X+4.

Then Sylvia eats TWICE the amount as Tom. In simpler terms, she's doubling the amount of food Tom eats. Doubling something is simply multiplying it by two. Therefore, we take Tom's amount eaten, which we made into an equation in the paragraph before this one, and multiply it by two.

Placing parenthesis around Tom's equation means that that part is solved before its multiplied. We do this because we need to acknowledge that X+4 is its own equation that needs to be clarified/solved before being doubled. So, the answer is 2(X+4)

5 0
3 years ago
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Naya [18.7K]
Subtracting the polynomials will give us:
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Answer: 17x-8.2y+3.1z
6 0
3 years ago
Read 2 more answers
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