Approximate the area under the curve and above the x-axis using n rectangles. Use left endpoints.f(x) = x2 - 3x + 4 from x = 1 to x = 5; n = 4
A. 20
B. 28
C. 30
D. 16
Answer: D
Mathematics
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Solve.What is the weight of a concrete wall that is 25 feet long, 5 feet high, and 8 inches thick? Assume concrete weighs 150 pounds per cubic foot. Round to the nearest pound.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Suppose that the graph of is given f is given. Describe how the graph of the function y=f(x–5)–5 can be obtained from the graph of f.
a. Shift the graph 5 units to the left and 5 units down. b. Shift the graph 5 units to the left and 5 units up. c. Shift the graph 5 units to the right and 5 units up. d. Shift the graph 5 units to the right and 5 units down. e. None of these
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Graph the function.f(x) = 
- 4
A. 
B. 
C. 
D. 
Mathematics
Find the area.
A. 1152 in.2 B. 924 in.2 C. 1224 in.2 D. 1848 in.2
Mathematics