Perform the indicated operation. If possible, simplify.Simplify:
+ 
A. csc2 x
B. sec x
C. csc x
D. cot x
Answer: C
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Graph the polar equation.r = 5(1 -sin ?)
A. 
B. 
C. 
D. 
Add or subtract as indicated.6 - 0 - (-7) - 16 + (-1)
A. 14 B. -4 C. 28 D. 16
Define a relation T from R to R as follows: for all (x, y) ? R × R, x T y ? y > x + 1.
(a) Is (1, 0) ? T? Is (0, 1) ? T? Is (?2, 5) ? T? Is (?3,?4) ? T? (b) Sketch the graph of T in the Cartesian plane.
Estimate an answer to the problem.An advertisement states that television sets are on sale at B&G Electronics. The sale prices are: src="https://sciemce.com/media/4/ppg__rrrrr0619191017__f1q102g5.jpg" alt="" style="vertical-align: -4.0px;" /> set costs than a 
set, $147.99; 19-inch set, $208.95; 
set, $231.99; 
set, $289.97; 
set, $519.97. Estimate to the nearest ten how much more a 
set.
A. $80
B. $70
C. $60
D. $90