Compute $$7-14+(14+5)\times 12\xf76$$.

hisyhauttaq84w
2022-05-09
Answered

Compute $$7-14+(14+5)\times 12\xf76$$.

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Finnegan Zimmerman

Answered 2022-05-10
Author has **12** answers

Add $14$ and $5$.

$7-14+19\cdot 12\xf76$

Multiply $19$ by $12$.

$7-14+228\xf76$

Find the common denominator.

$\frac{7\cdot 6}{6}+\frac{-14\cdot 6}{6}+228\xf76$

Combine the numerators over the common denominator.

$\frac{7\cdot 6-14\cdot 6+228}{6}$

Simplify each term.

$\frac{42-84+228}{6}$

Simplify the expression.

$31$

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$PP(\text{high-quality oil})=.50P(\text{medium-quality oil})=.20P(\text{no oil})=.30$

a. What is the probability of finding oil?

b. After 200 feet of drilling on the first well, a soil test is taken. The probabilities of finding the particular type of soil identified by the test follow.

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How should the firm interpret the soil test? What are the revised probabilities, and what is the new probability of finding oil?

a. What is the probability of finding oil?

b. After 200 feet of drilling on the first well, a soil test is taken. The probabilities of finding the particular type of soil identified by the test follow.

How should the firm interpret the soil test? What are the revised probabilities, and what is the new probability of finding oil?