Solve.A bag contains 7 red marbles, 2 blue marbles, and 1 green marble. What is the probability of choosing a marble that is not blue when one marble is drawn from the bag?
A. 
B. 8
C. 
D. 
Answer: A
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Replace the Cartesian equation with an equivalent polar equation.x2 + 4y2 = 4
A. cos2? + 4 sin2? = 4r B. r2(4 cos2? + sin2?) = 4 C. r2(cos2? + 4 sin2?) = 4 D. 4 cos2? + sin2? = 4r
Find the derivative.
A. 
B. 
C. 
D. 
Solve.County records list a rectangular parcel of land as measuring 42,994 square yards. A surveyor measures the length of the parcel of land as 259 yards. What is the width of the parcel?
A. 166 yards B. 159 yards C. 175 yards D. 42,735 yards
Suppose a certain amount of money is deposited into an account paying 4% annual interest, compounded quarterly (i.e., four times a year). For each positive integer n, let Sn = the amount on deposit at the end of the nth quarter, and let S0 be the initial amount deposited.
(a) Find a recurrence relation for S0, S1, S2, . . ., assuming no additional deposits or withdrawals for a 3-year period. (b) If S0 = $5000, find the amount of money on deposit at the end of three years. (c) Find the APR for the account.