Solve.The daily profit in dollars of a specialty cake shop is described by the function 
where x is the number of cakes prepared in one day. The maximum profit for the company occurs at the vertex of the parabola. How many cakes should be prepared per day in order to maximize profit?
A. 625 cakes
B. 3750 cakes
C. 25 cakes
D. 50 cakes
Answer: C
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Find the quadratic approximation of f at x = 0.f(x) = x
A. p2(x) = 2x B. p2(x) = 4x2 C. p2(x) = 1 - 2x D. p2(x) = 1 + 2x
Find the amount of premium retained by the company and the amount of refund to the insured using proration.Tessa's Jewelry has had their fire insurance canceled after 11 months. Their annual premium is $3311.
A. $3311.00, $0.00 B. $3035.08, $275.92 C. $3025.92, $285.08 D. $2759.17, $551.83
Solve.A meteor circles the earth in an elliptical orbit. The major axis of the elliptical orbit is 24 × 108 miles long and the minor axis is 10 × 108 miles long. If the earth is at one focus of the orbit what is the distance from the other focus?
A. 2 × 
× 108 mi
B. 
× 104 mi
C. 2 × 
× 104 mi
D. 2 × 
× 103 mi
Simplify. Write your answer in the form a + bi, where a and b are real numbers.(14 + 8i) - (6 + 4i)
A. -8 + 4i B. 8 - 4i C. 8 + 4i D. -8 - 4i