Find the indicted product and simplify if possible.The area of annulus (washer) is given by 
.
A. 
B. 
C. 
D. 
+ 
Answer: C
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Perform the indicated operation without the use of a calculator and express each answer in decimal notation.
A. 0.00142857 B. 700 C. 100 D. 0.07
Provide an appropriate response.If f(a) = 3 and f(x) is increasing on the interval [a, b], then which method of estimating the area under the graph of f(x) and above the x-axis will yield the highest value? Assume that n = 10 in all cases.
A. Using midpoints B. Using left endpoints C. Cannot be determined D. Using right endpoints
Solve the problem.Find the volume of a cube measuring 23 yd on each edge.
A. 1058 yd3 B. 529 yd3 C. 69 yd3 D. 12,167 yd3
Solve the problem.A twin-engined aircraft can fly 960 miles from city A to city B in 4 hours with the wind and make the return trip in 6 hours against the wind. What is the speed of the wind?
A. 20 mph B. 80 mph C. 40 mph D. 60 mph