Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.sin ? = - 
, 
< ? < 2?Find cos 
.
A. - 
B. 
C. - 
D. 
Answer: C
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Find each product. Write the result in the form a + bi.7i(4 - 2i)
A. 28i + 14i2 B. 14 + 28i C. 28i - 14i2 D. 28i - 14
Solve the problem.In year 0, the number of female athletes participating in Summer Olympic-Type Games was 450. In year 11, about 3550 participated in the Summer Olympics in Atlanta. Assuming that 
and that the exponential model applies, find the value of k rounded to the hundredths place, and write the function.
A. k = 0.21; P(t) = 500e0.21t B. k = 0.17; P(t) = 500e0.17t C. k = 0.19; P(t) = 500e0.19t D. k = 0.19; P(t) = 500e0.29t
Solve the problem.If f(x) = 6x2 - 5x and g(x) = 2x + 3, solve for f(x) = g(x)
A. 
B. 
C. 
D. 
Suppose you are taking a true-false test with ten questions. If you guess at the answers on this test, find the probability of getting fewer than nine correct answers. ?
A. 0.9944 B. 0.9928 C. 0.9868 D. 0.9935 E. 0.9893