Calculate the derivative of the function. Then find the value of the derivative as specified.f(x) = 5x + 9; f '(2)
A. f '(x) = 5x; f '(2) = 10
B. f '(x) = 9; f '(2) = 9
C. f '(x) = 5; f '(2) = 5
D. f '(x) = 0; f '(2) = 0
Answer: C
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Determine the order of integration and then evaluate the integral.
A. e49 - 
B. 
C. e49 - 1
D. 7e49 - 350
Write the complex number in the form a + bi.
(cos 150° + i sin 150°)
A. - 
+ 
i
B. - 
+ 
i
C. - 
+ 
i
D. - 
+ 
i
Solve.y varies inversely with x. If y = 6 when x = 5, find y when x = 3.
A. y = 2
B. y = 
C. y = 10
D. y = 15
Solve the problem.The ferris wheel in the figure has a radius of 42 meters. The distance between the top of the ferris wheel and the ground is 91 meters. The rectangular coordinate system shown has its origin on the ground directly below the center of the wheel. Use the coordinate system to write the equation of the circular wheel.
A. x2 + (y - 49)2 = 842 B. x2 + y2 = 422 C. x2 + (y - 49)2 = 422 D. x2 + (y + 49)2 = 422