Find the equation for the hyperbola described.Center at (0, 0); focus at (9, 0); vertex at (2, 0)
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Answer: C
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Solve the problem.License plates are made using 3 letters followed by 2 digits. How many plates can be made if repetition of letters and digits is allowed?
A. 1,757,600 B. 175,760 C. 11,881,376 D. 100,000
State the phrase as a mathematical expression. Use x to represent the variable.A number increased by eleven
A. 11 B. x - 11 C. x + 11 D. 11x
Find an exponential function of the form P(t) = yoekt to model the given data.In 1985, the number of female athletes participating in Summer Olympic-Type Games was 450. In 1996, about 3600 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 = 0.19; P(t) = 500e0.19t B. k = 0.19; P(t) = 500e0.29t C. k = 0.21; P(t) = 500e0.21t D. k = 0.17; P(t) = 500e0.17t
Perform the indicated operations and simplify the result. Leave the answer in factored form.
- 
A. 
B. 
C. 
D. 1