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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Evaluate the following expression. Enter your answer in simplest form. 1 divided by 4/2 + 2 exponent 2

Chelsea has an electronics business

1. Which numbers are solutions of the inequality? x < - 8; - 10, - 5, 0 A) 0 B) - 5 and 0 C) - 10, - 5, and 0 D) - 10

Barton spring pools charges $2 a visit plus a fee of $20.90 a month. Blue Danube Pool charges $2.95 a visit, with no membership fees. At what number of visits per month will the total fees for each pool be the same?

Kevin went to the nursery and bought a 5 ft tall tree. After planting the tree, Kevin made a table to record the height, h, of the tree, t years after it was planted.

Which expression has the same sum as the one below? -15 + 6 a 15 + 6 b - 6 + (-15) c 15 + (-6) d 6 + (-15)

A race car travels 100 feet in 5 seconds, at this rate of speed, how many feet will the race car travel in a minute

90=36+54 use the distributive propertyAnd the GCF of 36 and 34 to write another related expression for 90 could you write another expression with a different common factor

What is the arc length of a circle that has a 7 cm radius in central angle that is 40° use 3.14 for pie and round your answer to the nearest hundredth

Susan's property is assessed at $27,500. The property tax rate in her city is 3.25%. Find her property tax. $893.75 $8,461.54 $27,500