Multiply and simplify.sec x (cot x + sin x)
A. sin x + csc x
B. cos2x - cot x
C. cos2x + 2 sin2x
D. csc x + tan x
Answer: D
Mathematics
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Solve the problem.Find the center of mass of the lamina bounded by the coordinate axes and the line 
if 
.
A. 
= 
, 
= 
B. 
= 
, 
= 
C. 
= 
, 
= 
D. 
= 
, 
= 
Mathematics
Solve area problem.The diameter of a discus is about 8.6 in. What is the area of one flat surface of the discus? (Round to the nearest hundredth.)(Use 3.1 4 for ? .)
A. 58.06 in.2 B. 27 in.2 C. 29.03 in.2 D. 232.23 in.2
Mathematics
Determine whether the slope of the line is positive, negative, zero, or undefined.
A. negative B. undefined C. zero D. positive
Mathematics
Combine and simplify, if possible.-12
- 5
A. 8
B. 16
C. -17
D. -7
Mathematics