Find the centroid of the region.
A. 
= 
, 
= 
B. 
= 
, 
= 
C. 
= 
, 
= 
D. 
= 
, 
= 
Answer: C
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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 = -x2 - 3 B. y = -(x - 3)2 C. y = -(x + 3)2 D. y = -x2 + 3
A box contains $7.15 in nickels, dimes, and quarters. There are 44 coins in all, and the sum of the numbers of nickels and dimes is two less than the number of quarters. How many coins of each kind are there?
A. 17 nickels, 6 dimes, and 21 quarters B. 16 nickels, 5 dimes, and 23 quarters C. 16 nickels, 10 dimes, and 27 quarters D. 14 nickels, 7 dimes, and 23 quarters E. 18 nickels, 9 dimes, and 17 quarters
Factor out the negative of the greatest common factor.-54m9 + 6m7 - 42m5
A. -m5(-54m4 + 6m2 + 42) B. -6m5(9m4 - m2 + 7) C. -6(9m9 - m7 + 7m5) D. -m5(54m4 - 6m2 + 42)
Determine whether the given function is one-to-one. If it is one-to-one, find its inverse.f(x) = 
+ 1
A. f-1(x) = (x - 1)3
B. f-1(x) = x3 - 1
C. f-1(x) = 
- 1
D. f-1(x) = (x + 1)3