Estimate the sum as indicated. Then answer the question.Estimate the following sum by first rounding to the nearest ten. Does the estimate give you reason to doubt the stated sum?
A. Estimate: 1230 ; yes
B. Estimate: 1160 ; no
C. Estimate: 1010 ; yes
D. Estimate: 1140 ; no
Answer: B
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Factor completely.75a4b - 48b3
A. 3b(5a + 4b)2 B. 3b(5a2 + 4b)(5a2 - 4b) C. 3b(5a - 4b)2 D. (15a + 12b)(5ab - 4b2)
Suppose the point (2, 4) is on the graph of y = f(x). Find a point on the graph of the given function.The reflection of the graph of y = f(x) across the x-axis
A. (-2, 4) B. (2, 4) C. (2, -4) D. (-2, -4)
Complete the horizontal analysis for the balance sheet. Round to the nearest tenth of a percent.
A. -40.1%, 33.1%, 14.3%, 33.0%, 15.5%, 46.9%, 19.2% B. -66.7%, 25.0%, 12.5%, 24.8%, 13.5%, 31.9%, 16.1% C. -40.0%, 33.3%, 14.3%, 33.0%, 15.5%, 46.9%, 19.3% D. 166.7%, 75.0%, 87.5%, 75.2%, 86.5%, 68.1%, 83.9%
Shade the region in the xy-plane that satisfies the system of inequalities.
+ 
? 1-x + y ? 3 
A. 
B. 
C. 
D. 