Find the most general antiderivative.
dx
A. -7 cot x + C
B. 
+ C
C. -7 tan x + C
D. 7 cot x + C
Answer: C
Mathematics
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Find the area.Find the area of the region bounded by the curve y = 9x-2, the x-axis, and on the left by x = 1.
A. 18
B. 81
C. 9
D. 
Mathematics
Find an equation for the sphere with the given center and radius.Center (0, 0, 5), radius = 8
A. x2 + y2 + z2 - 10z = 39 B. x2 + y2 + 8 z2 + 10z = 39 C. x2 + y2 + z2 + 10z = 39 D. x2 + y2 + 8 z2 - 10z = 39
Mathematics
Evaluate.
A. 126 B. 252 C. 30,240 D. 504
Mathematics
Use the number line model to illustrate the following operation.
- 
A. 
- 
= 
B. 
- 
= 
C. 
- 
= 
D. 
- 
= 
Mathematics