Approximate the area under the graph of f(x) and above the x-axis using n rectangles.f(x) = x2 + 2; interval [0, 5]; n = 5; compute L5
A. 65
B. 40
C. 32
D. 66
Answer: B
Mathematics
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Write an equivalent expression. Use a commutative law.9 + b
A. b9 B. 9(1 + b) C. 9b D. b + 9
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Multiply. Write the product in lowest terms.
A. 
B. - 
C. 
D. 1
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Solve the problem.A sailboat leaves port on a bearing of S72°W. After sailing for two hours at 12 knots, the boat turns 90° toward the south. After sailing for three hours at 9 knots on this course, what is the bearing to the ship from port? Round your answer to the nearest 0.1°.
A. N23.6°E B. S24.6°W C. S23.6°W D. N24.6°E
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Solve using the multiplication principle.5.1t = -35.7
A. -7
B. -30.6
C. - 
D. -28.7
Mathematics