Which of the following is not equal to cos(520°)?

cos(160°)

cos(200°)

cos(...

Mathematics, 12.11.2019 11:31, dannmend123

# Which of the following is not equal to cos(520°)?

cos(160°)

cos(200°)

cos(20°)

-cos(-20°)

explain your answer

Answers: 1

Mathematics, 09.03.2020 13:49, cpalabamagirl2595

23) 84% of a contractor’s jobs involves electrical work. 75% of a contractor’s jobs involve plumbing work. Of the jobs that involve plumbing, 90% of the jobs also involves electrical work. Let E = jobs involving electrical work L = jobs involving plumbing work Suppose one of the contractor’s jobs is randomly selected. Using the sixth Excel worksheet, a) Find P(E). 0.84 b) Find P(L). 0.75 c) In words, what does E | L mean? d) Find P(E | L). e) Find P(E and L). f) Are E and L independent events? Why or why not? g) Find P(E or L). h) Are E and L mutually exclusive? Why or why not

Answers: 3

Mathematics, 09.03.2020 13:41, donahueno1753

The mean and median of 100 observations are 50 and 52 respectively. The value of the largest observation is 100. It was later found that it is 110. Find the true mean and median.

Answers: 3

Mathematics, 21.06.2019 13:40, xyzendre

Assuming a population standard deviation gross earnings of 0.55 million dollars, obtain a 99% confidence interval for the mean gross earnings of all rolling stones concerts (in millions). carry at least three decimal places in intermediate steps. give your answer to the nearest 3 decimal places.

Answers: 2

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Mathematics, 21.11.2019 21:31