What number is 90% of 400?
A. 1,800
B. 360
C. 36,000
D. 460
E. 18,000
Answer: B
Mathematics
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Set up an integral for the length of the curve.y = 8 cot x, 
? x ? 
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.The weight of a body above the surface of the earth is inversely proportional to the square of its distance from the water of the earth. What is the effect on the weight when the distance is multiplied by 3?
A. The weight is multiplied by 3. B. The weight is divided by 3. C. The weight is multiplied by 9. D. The weight is divided by 9.
Mathematics
Perform the indicated conversion within American units of length.14,080 yards to miles
A. 42,240 mi
B. 8 mi
C. 14
mi
D. 2
mi
Mathematics
Solve the system by graphing.
A. (2, 1) B. (2, -3) C. (-2, -3) D. (0, 7)
Mathematics