Prove the identity. = -4 (cos2 t + cos t)

What will be an ideal response?


Answers may vary. One possible solution is:
 =  =  =  =   =   =   = -4 cos t (cos t + 1)
=

Mathematics

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The region is represented below. Find the area of this region to two decimal places.


a. 20.28
b. 17.89
c. 16.08
d. 15.89
e.15.87

Mathematics

Evaluate by using scientific notation and the laws of exponents. Leave you answer in scientific notation.

A. 72 × 105 B. 72 × 10-5 C. 8 × 104 D. 8 × 10-4 

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Identify the pattern and find the next three terms.

Mathematics

Write the percent statement as an expression.


A) 0.0315x
B) 3.25x
C) 0.00325x
D) 0.325x
E) 0.0325x

Mathematics