What is the value of x to the nearest degree? A.32 B.85 C.82 D.58

Mathematics

2 answers:

ivann1987 [24]3 years ago

8 0

Answer:

A.32

Step-by-step explanation:

tan(x) = 7/11

x = tan^-1 (7/11)

x = 32.4712

dangina [55]3 years ago

4 0

Answer:

m∠x ≈ 32°

Step-by-step explanation:

We can see that we have to use tan∅ to solve this (opposite over adjacent)

tan(x) = 7/11

x = tan^-1 (7/11)

x = 32.4712

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Approximately 5% of calculators coming out of the production lines have a defect. Fifty calculators are randomly selected from t

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Answer:

0.2611 = 26.11% probability that exactly 2 calculators are defective.

Step-by-step explanation:

For each calculator, there are only two possible outcomes. Either it is defective, or it is not. The probability of a calculator being defective is independent of any other calculator, which means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$