Find the partial derivative.Find fx(2, 4) when f(x, y) = ln 
.
A. 
B. 
C. ln 15
D. 
Answer: D
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Perform the requested operation on the given function.f(x) = 7x - 8, g(x) = 4x - 4Find (g - f)(x).
A. -3x + 4 B. -3x - 12 C. 3x - 4 D. 3x - 12
Solve the problem.A rectangular piece of tin has an area of 1080 square inches. A square of 3 inches is cut from each corner, and an open box is made by turning up the ends and sides. If the volume of the box is 2106 cubic inches, what were the original dimensions of the piece of tin?
A. 24 in. by 45 in. B. 27 in. by 48 in. C. 18 in. by 36 in. D. 21 in. by 42 in.
Provide an appropriate response.If a quadratic equation has no real solutions, what expression in the quadratic formula must be negative?
A. 
B. The denominator: 2a
C. b2 - 4ac
D. The numerator: - b ± 
Find the value of the combination.C(5, 5)
A. 120 B. 30 C. 1 D. 0.5