Find the quadratic approximation of f at x = 0.f(x) = x
A. Q(x) = 81x2
B. Q(x) = 9x
C. Q(x) = 1 + 9x
D. Q(x) = 1 - 9x
Answer: B
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Write a quadratic equation having the given numbers as solutions.9, only solution
A. x2 + 9x + 81 = 0 B. x2 - 81 = 0 C. x2 - 18x + 81 = 0 D. x2 + 18x + 81 = 0
Solve the problem.Find (i) the exact surface area and (ii) the approximate surface area of the right circular cylinder pictured below. Use 3.14 for ? and round your approximate answer to the nearest tenth. 
A. (i) 45? ft2; (ii) 141.3 ft2 B. (i) 81? ft2; (ii) 254.3 ft2 C. (i) 63? ft2; (ii) 197.8 ft2 D. (i) 72? ft2; (ii) 226.1 ft2
Provide an appropriate response.Let
f(x) = -9 and
g(x) = -2. Find
[f(x) - g(x)].
A. -5 B. -11 C. -7 D. -9
Solve the application.A 0.75-lb package of salami costs $2.71. What was the price of one pound of salami?
A. $2.03 per lb B. $2.71 per lb C. $4.74 per lb D. $3.61 per lb