Mathematics, 12.11.2019 11:31, jaycobgarciavis

# Angles ∝ and β are the two acute angles in a right triangle. use the relationship between sine and cosine to find the value of β if β < ∝.

sin(7x - 15) = cos(3x + 5)

a) 10°

b) 35°

c) 55°

d) 80°

Answers: 3

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, romedome15

The triangle shown below has an area of 12. find x

Answers: 1

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

Angles ∝ and β are the two acute angles in a right triangle. use the relationship between sine and c...

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