Find the length of the unknown side of the right triangle. In each case, a and b represent the lengths of the legs and c represents the length of the hypotenuse.
a = 20, c = 52; find b
A. 3104
B. 48
C. 2704
D. 4
Answer: B
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Solve the problem.Suppose that you have $12,000 to invest. Which investment yields the greater return over 7 years: 8.75% compounded continuously or 8.9% compounded semiannually?
A. Both investment plans yield the same return. B. $12,000 invested at 8.75% compounded continuously over 7 years yields the greater return. C. $12,000 invested at 8.9% compounded semiannually over 7 years yields the greater return.
Find the zeros of the function in the interval [-2?, 2?].f(x) = 3 cos x
A. 0, ±?, ±2?
B. 0, ±
, ±
C. ±
, ±?, ± 
, ±2?
D. ±
, ±
Solve the problem.Leon Harding receives proceeds of $4083 after signing a 
note for 
Find the discount rate. Round to the nearest tenth.
A. 3.1% B. 2.6% C. 0.4% D. 5.1%
Rewrite the division as a multiplication.
A. (3x + 7)
B. (3x + 7)
C. 7
D. (3x + 7)(-7)