Determine whether the given function is one-to-one. If it is one-to-one, find its inverse.f(x) = x 
A. f-1(x) = x3 - 3
B. Not one-to-one
C. f-1(x) = x 
D. f-1(x) = x2 + 3
Answer: B
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At one high school, the mean time for running the 100-yard dash is 
with a standard deviation of 0.9 seconds. The times are very closely approximated by a normal curve. Find the percent of times that are:Greater than 13.4 seconds
A. 84% B. 98% C. 2.5% D. 97.7%
Solve the right triangle.
a = 20.9, b = 25.6
A. A = 50.8, B = 39.2, c = 33 B. A = 35.3, B = 54.7, c = 14.8 C. A = 39.2, B = 50.8, c = 14.8 D. A = 39.2, B = 50.8, c = 33
Use the quadratic formula or graphing methods to solve the inequality.8x2 - 36x + 8 ? 0
A. 
? 0.234 ? x ? 
? 4.266
B. x ? 
? 0.234
C. x ? 
? 0.234 or x ? 
? 4.266
D. x ? 
? 4.266
Factor the trinomial completely. If the trinomial cannot be factored, say it is prime.a2 - 5ab - 36b2
A. (a + 4b)(a - 9b) B. (a - 4b)(a + b) C. (a - 4b)(a + 9b) D. prime