Solve the problem.The number N, in millions of Americans of age x with arthritis, is estimated with the following graph.Give the age(s) at which there are 2 million people with arthritis.

A. 35 and 80
B. 46
C. 45 and 65
D. 46 and 80

Answer: D

Mathematics

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Evaluate the integral by making a substitution (possibly trigonometric) and then applying a reduction formula.

A. [csc(e^t - 2) cot(e^t - 2) + ln] + C
B. [csc(e^t - 2) cot(e^t - 2) - ln] + C
C. - [csc(e^t - 2) cot(e^t - 2) + ln] + C
D. - [csc(e^t - 2) cot(e^t - 2) - ln] + C

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Mathematics

Use the substitution method to solve the system.x + 4y = -125x + 3y = -26

A. (-4, -2) B. (4, -1) C. No solution D. (-5, -1)

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Mathematics

Find the slope of a line tangent to the curve of the given equation at the given point.y = x2 - x; (-4, 20)

A. -9 B. 16 C. 20 D. 12

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Mathematics

Subtract.

A. 36,443 B. 32,443 C. 32,357 D. 32,437

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Mathematics