Approximate the area under the curve and above the x-axis using n rectangles. Use right endpoints.f(x) = e-x + 8 from x = -2 to x = 6; n = 4
A. 64.02
B. 81.09
C. 66.31
D. 70.29
Answer: C
Mathematics
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Fill in the missing value.217 mL = L
A. 2.17 B. 21,700 C. 217,000 D. 0.217
Mathematics
Express the number in decimal notation.4.14 × 10-4
A. 0.0000414 B. -414,000 C. 0.000414 D. 0.00414
Mathematics
Solve the problem.A gallon of paint can cover about 400 square feet. Find the number of gallons of paint that John should purchase to paint two coats of paint on all the walls and the ceiling of a room that measures 7 feet by 6 feet with a 12 foot ceiling. Remember, you cannot purchase a partial container of paint.
A. 2 gal B. 0 gal C. 4 gal D. 3 gal
Mathematics
Provide an appropriate response.What is the range of the function y = 
x?
A. (-?, 0) B. (0, ?) C. [0, ?) D. (-?, ?)
Mathematics