Determine the area of the surface generated when the curve is revolved about the indicated axis.x = 3
, for 0 ? y ? 
; about the y-axis
A. 5?
B. 
?
C. 
?
D. 
?
Answer: D
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Simplify the algebraic expression by combining similar terms.x - 0.8x - 3.6x
A. -3.2x B. -3x C. -3.1x D. -3.4x E. -3.3x
Solve the problem.The amount of money (in thousands of dollars) that Americans spend yearly at coffee retailers has increased greatly. 
Let D be the amount (in thousands of dollars) Americans have spent on coffee every year since 2014. A model for the situation is 
How much money will Americans spend on coffee in the year 2027?
A. $235,000 B. $2350 C. $235 D. $23,500
Establish the identity.cot(x + y) cot(x - y) = 
What will be an ideal response?
Given that f(x) = sin x, g(x) = cos x, and h(x) = tan x, evaluate the given function. The point (x, 
), on the circle 
, also lies on the terminal side of an angle ? in quadrant II. The point 
, on the circle 
, also lies on the terminal side of an angle ? in quadrant III.f
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A. 
B. - 
C. - 
D. 