Use a calculator to approximate the area of the surface generated when the given curve is revolved about the x-axis. Round to two decimal places when necessary.y = sinx on 
A. 13.39
B. 7.65
C. 5.1
D. 1.15
Answer: D
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If you have the following function, f ( x ) = -x 2 - 5x + 4, compute f (3), f (-2), f (5), f (-4).
A. f (3) = 0, f (-2) = 21, f (5) = 6, f (-4) = 43 B. f (3) = –2, f (-2) = 18, f (5) = 4, f (-4) = 40 C. f (3) = 1, f (-2) = 20, f (5) = 7, f (-4) = 42 D. f (3) = –1, f (-2) = 19, f (5) = 5, f (-4) = 41 E. f (3) = –3, f (-2) = 16, f (5) = 2, f (-4) = 39
Solve the problem.After spending $2150 for tables and $3750 for chairs a convention center manager finds that the furniture cost 4% more than last year. Find the amount that he spent last year on tables and chairs. Round to the nearest dollar.
A. $236 B. $3906 C. $5673 D. $6146
Solve.
- 
= 
A. 8 B. -8 C. 2 D. -2
Provide an appropriate response.If the y-intercept of the linear function y = b + 5x lies below the x-axis, then what can you say about b?
A. b < 0 B. b > 0 C. b ? 0 D. b = 0