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viva [34]
3 years ago
15

Find the area of ​​the base of the triangular base pyramid.

Mathematics
1 answer:
OleMash [197]3 years ago
3 0

Answer:

31.5 inches

Step-by-step explanation:

A = 1/2 h l

A= 1/2 (7) (9)

A = 1/2 (63)

A = 31.5 inches

h=height

l=length of base

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Factor. 2v^2-11v-63
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Answer:

  (2v +7)(v -9)

Step-by-step explanation:

Factors of 2·(-63) = -126 that have a sum of -11 are 7 and -18, so we can rewrite the middle term to -18v+7v. Then we can factor by grouping.

  2v^2 -18v +7v -63 = 2v(v -9) +7(v -9)

  = (2v +7)(v -9)

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Describe the steps in solving the linear equation 3(3x − 8) = 4x + 6.
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Answer:

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Step-by-step explanation:

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3 years ago
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A student answers a multiple-choice examination question that offers four possible answers. Suppose the probability that the stu
Nitella [24]

Answer: 0.9730

Step-by-step explanation:

Let A be the event of the answer being correct and B be the event of the knew the answer.

Given: P(A)=0.9

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If it is given that the answer is correct , then the probability that he guess the answer P(B|A)= 1

By Bayes theorem , we have

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7 0
3 years ago
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