Eliminate the parameter of the pair of parametric equations.x = t + 4, y = t2
A. y = x2 + 16
B. y = x2 - 8x + 16
C. y = 
D. y = 
+ x + 4
Answer: B
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The graph of a function f is provided. Determine the requested function value.f(0)
A. -12 B. -4 C. 2 D. -2
Solve the problem.In a Psychology class, the students were tested at the end of the course on a final exam. Then they were retested with an equivalent test at subsequent time intervals. Their average scores after t months are given in the table.
Using a graphing utility, fit a logarithmic function y = a + b ln x to the data. Using the function you found, estimate how long will it take for the test scores to fall below 84%. Express your answer to the nearest month.
A. 20 months B. 10 months C. 8 months D. 12 months
Find the requested probability.A family has five children. The probability of having a girl is 1/2. What is the probability of having no more than 3 boys?
A. 0.3125 B. 0.5000 C. 0.9688 D. 0.8125
Solve by the most appropriate method.3m2 + 12m + 1 = 0
A. m = 
B. m = 
C. m = 
D. m = 