Evaluate the integral.
A. -4i - 
j + 40k
B. -4i - 
j - 40k
C. -4i + 
j + 40k
D. +4i + 
j + 40k
Answer: A
Mathematics
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Graph the exponential function.y = -5x 
A. 
B. 
C. 
D. 
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Use the sum-of-the-years'-digits method of depreciation. Round to the nearest dollar.Find the book value at the end of the second year for an air filtration system which cost $7800, has a life of 5 years, and an estimated scrap value of $780.
A. $4992 B. $3120 C. $4212 D. $3588
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Find the area of the specified region.Inside the circle r = a sin? and outside the cardioid r = a(1 - sin ?), a > 0
A. 
(2? - 3
)
B. 
(4? - 3
)
C. 
(6 - ?)
D. 
(3
- ?)
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For the given functions f and g , find the indicated composition.f(x) = -4x + 9,g(x) = 5x + 3(g?f)(x)
A. 20x + 48 B. -20x + 21 C. -20x - 42 D. -20x + 48
Mathematics