Express the product as a sum containing only sines or cosines.cos(4?) cos(6?)

A. [cos(10?) - cos(2?)]
B. cos2(18?2)
C. [cos(10?) - sin(2?)]
D. [cos(2?) + cos(10?)]


Answer: D

Mathematics

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Solve the initial value problem. = 8; y "(0) = 4, y '(0) = 6, y(0) = 5

A. y = 5
B. y = x3 - 2x2 + 6
C. y = x3 + 2x2 + 6x + 5
D. y = x3 + 2x2 + 6x + 5

Mathematics

Find an exponential model for the following data set. Round your answer to two decimal places.  t 0 1 2 3 y 3.06 3.67 4.40 5.28?

A. ?
B. ?
C.
D. ?

Mathematics

Perform the indicated operations.5 + 16

A. -11
B. 21
C. 12
D. -22

Mathematics

Solve.Enrollment in a business seminar increased from 70 people to 84 people. What was the percent increase?

A.

16.7%

B. 20%
C.
83.3%

D.
80%

Mathematics