Find dy.y = x
A. 
dx
B. 
dx
C. 
dx
D. 
dx
Answer: B
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Find a bound on the real zeros of the polynomial function.f(x) = x4 - 7x2 - 18
A. -18 and 18 B. -25 and 25 C. -26 and 26 D. -19 and 19
Use roster notation to name the set.The set of natural numbers that are multiples of 5
A. {5, 10, 15, . . . } B. {5, 10, 20, . . . } C. {5, 25, 125, . . . } D. {1, 2, 3, . . . }
Solve the problem.The average daily temperature T of a city in the United States is approximated by T = 55 - 23 cos 
(t -30)where t is in days, 1 ? t ? 365, and t = 1 corresponds to January 1. Find the period of T.
Fill in the blank(s) with the appropriate word(s).
Use a calculator to solve the equation. Round to the nearest hundredth, if necessary.(2.03p + 6.11)2 = 8.07
A. {4.41, -1.61} B. {-1.61, -4.41} C. {0.69, -0.69} D. {1.61, -1.61}