Estimate the sum or difference by first rounding as indicated.Estimate by first rounding to the nearest thousand.977036632796
A. 22,500
B. 23,000
C. 22,000
D. 22,400
Answer: B
Mathematics
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Find the volume of the solid generated by revolving the region about the y-axis.The region enclosed by the triangle with vertices (0, 0), (1, 0), (1, 2)
A. 
?
B. 4?
C. 
?
D. 
?
Mathematics
Solve. If needed, round money amounts to two decimal places and all other amounts to one decimal place.The number of video stores in a region recently decreased from 113 to 69. Find the percent of decrease.
A. 63.8% B. 38.9% C. 61.1% D. 156.8%
Mathematics
Express the limit as a definite integral where P is a partition of the given interval.lim
?0
?xk, [10, 12]
A. 
dx
B. 
dx
C. 
dx
D. 
dx
Mathematics
A matrix has an inverse if and only if its determinant does not equal 0. Determine whether the given matrix has an inverse.
A. No B. Yes
Mathematics