Use identities to find the exact value of the trigonometric function.Find cos ?, given that csc ? = 
and ? is in quadrant IV.
A. 
B. 
C. - 
D. - 
Answer: B
Mathematics
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Evaluate -(-x) for the given value of x.x = -70
A. - 
B. -70
C. 0
D. 70
Mathematics
A lawn sprinkler is located at the corner of a yard. The sprinkler is set to rotate through 90
and project water out 53 feet. What is the area of the yard watered by the sprinkler?
?
If the answer needs rounding, round it to three significant digits.
?
A = __________ feet2
What will be an ideal response?
Mathematics
Solve the inequality. Write the answer in set-builder notation.
(8x + 8) ? 12
A. 
B. 
C. 
D. 
Mathematics
Find the center of mass of the given system of point masses.
6
? 8
? 7
? 1
? 3
?
?
A. 
, 
B. ?
, 
C. ?
, 
D. ?
, 
E. ?
, 
Mathematics