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3 years ago

9

How do u solve the equation 4(a - 4) = a - 15?

2 answers:

Dmitry_Shevchenko [17]3 years ago

6 0

A=1/3

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baherus [9]3 years ago

5 0

4(-11) im pretty sure its that or 4(-19)

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Answer:

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Q2) She has a 99.91% probability of passing in the test.

Step-by-step explanation:

For each question, there are only two possible outcomes. Either he gets it correct, or he gets it wrong. So we solve this problem using the binomial probability distribution.

Binomial probability distribution

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And $\pi$ is the probability of X happening.

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Question 1.

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The student is going to guess each question, so he has a $\pi = \frac{1}{4} = 0.25$ probability of getting it right.

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So we need to find $P(X \geq 25)$ .

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