Find an equation for the hyperbola described. Graph the equation.Center at (0, 0); focus at (
, 0); vertex at (5, 0)
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Answer: B
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Find the perimeter of the specified triangle. Assume the triangles are similar.Find the perimeter of the triangle on the left.
A. 36.4 cm B. 24.4 cm C. 48.4 cm D. 72.4 cm
Solve.The population P, in thousands, of Pine Grove is given by P(t) = 
, where t is the time, in months. Find the interval on which the population was 40 thousand or greater.
A. [5.474, ?) B. (-?, ?) C. [0.526, 5.474] D. [0.658, 6.842]
Solve.Keyana takes a job with a starting salary of $40,000 for the first year with an annual increase of 4% beginning in the second year. What is Keyana's salary, to the nearest dollar, in the seventh year?
A. $51,425 B. $50,613 C. $52,721 D. $49,396
Determine whether the equation defines y as a function of x. y = |x|
A. function B. not a function