Change the quantity into the indicated unit. Round to the nearest tenth.247 mi ? 
km
A. 397.7 km
B. 261.8 km
C. 153.4 km
D. 233.7 km
Answer: A
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Find the center of mass of a thin plate of constant density covering the given region.The region between the x-axis and the curve y = 6csc2 x, 
? x ? 
A. 
= 
, 
= 8
B. 
= 
, 
= 4
C. 
= 
, 
= 9
D. 
= 
, 
= 6
Solve the problem.The accompanying figure shows the graph of y = x2 shifted to a new position. Write the equation for the new graph.
A. y = (x - 6)2 B. y = x2 - 6 C. y = x2 + 6 D. y = (x + 6)2
Simplify.15 ÷ 0.1 - 14 × 0.042
A. 29.5936 B. 0.2176 C. 149.6864 D. 149.9776
Solve this problem.An open box is to be made from a rectangular piece of tin by cutting two inch squares out of the corners and folding up the sides. The volume of the box will be 100 cubic inches. Find the dimensions of the rectangular piece of tin.
A. 5 in. by 9 in. B. 4 in. by 9 in. C. Not enough information D. 5 in. by 10 in.