Approximate the area under the curve and above the x-axis using n rectangles. Use the midpoints of the rectangles.f(x) = x2 from x = 0 to x = 4; n = 4
A. 21
B. 14
C. 30
D. 22
Answer: A
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Convert the measure to the one that is underlined and then add.38 dL + 7 daL
A. 738 dL B. 7038 dL C. 108 dL D. 45 dL
Solve using a proportion. Round your answer to the nearest hundredth when necessary.Jared found an old family photograph that was 9 inches wide and 6 inches high. He wanted a copy that was 1.75 inches less wide. What will the height of that reduced copy be? Round to the nearest tenth of an inch.
A. 7.4 inches B. 10.9 inches C. 4.8 inches D. 1.2 inches
Use a formula to solve the problem.A circle has a circumference of 32? meters. Find the radius of the circle.
A. 8 m B. 16 m C. 32 m D. 5 m
Solve the problem.A fossilized leaf contains 12% of its normal amount of carbon 14. How old is the fossil (to the nearest year)? Use 5600 years as the half-life of carbon 14.
A. 36,108 B. 1031 C. 17,099 D. 20,040