Select the correct answer.

What is the expanded equivalent of cos (a - b) ?

A

sin a cos b-cos a sin b

O

O

B.

sin a cos b + cos a sin b

O

C.

cos a cos b - sin a sin b

O

D.

cos a cos b + sin a sin b

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Elliotts starting wage for his new job is 7.25$ per hour. Each month during his first year, his hourly wage will increase by 0.25. What will his hourly wage be in his 15th month on the job

A piece of ribbon that is 8 1/3 yards will be cut into 5 equal pieces to make bows. How much ribbon will be used for each bow?

There are 5 times as many animals at the Central zoo as there are at the Baty zoo. The Central zoo has 265 animals in all. Let b represent the number of animals at the Baty zoo.

In how many ways can a committee of 4 be chosen from a group of 9 people?

Pine Bluff Middle School is having its annual Spring Fling dance, which will cost $400. The student treasurer reported that the dance fund has $75 left over from last year. Each ticket to the dance costs $4.

Convert 3/4 into a quotient and percentage

Simplify the expression 3 (-3y+2x) combine like terms a+3a-b+4b+c

If a figure has 5 sides 5 vertices and no equal sides what is it? it is a polygon BTW

If I rent a boat for $25 per hour and a charge additionally $12 for fuel is the number of hours I rent the boat proportional to the total cost

90,88,88,87,84,95,90,80,98, and 100 (A) find the mean of these numbers (B) find the median of these numbers