Find the center of mass of a thin plate of constant density covering the given region.The region bounded by the parabola x = y2 and the line x = 16
A. 
= 
, 
= 0
B. 
= 16, 
= 0
C. 
= 0, 
= 
D. 
= 
, 
= 0
Answer: A
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Solve the problem.A circular pond is being installed in the corner of a yard, as shown. The installer needs to know the value of x in feet. Find x to the nearest tenth of a foot. 
?a = 47 ft
A. 55.1 ft B. 55.3 ft C. 54.7 ft D. 54.4 ft
Express the sentence as a single numerical expression. Then use the order of operations to simplify the expression.Subtract 13 from 11. Multiply this difference by 3. Raise this product to the fourth power.
A. -216 B. -1296 C. 1296 D. 81
Solve.George bought a book for $11.58. If he paid with two $10 bills, what was his change?
A. $8.42 B. $9.42 C. $9.00 D. $8.52
Solve.In a lottery game run by a certain state, for every game ticket purchased, a player can pick any 4 numbers from 1 through 44. If the numbers match those drawn by the state, the player wins. If Martin buys 3 tickets, what is his probability of winning?
A. 
B. 
C. 
D. 