Factor completely. If the polynomial cannot be factored, write "prime."x2 - 4x - 45
A. (x - 5)(x + 1)
B. (x - 5)(x + 9)
C. (x + 5)(x - 9)
D. Prime
Answer: C
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Solve the problem.Write parametric equations for the tangent line to the curve of intersection of the surfaces 
and 
at the point 
A. 
B. 
C. 
D. 
Use the quadratic function to determine if the function has a maximum or minimum value and then find this maximum or minimum value.f(x) = -x2 - 
x + 8
A. minimum at 
B. maximum at 
C. maximum at 
D. minimum at 
Solve the problem.When an object is dropped to the ground from a height of h meters, the time it takes for the object to reach the ground is given by the equation t = 
, where t is measured in seconds. Solve the equation for h. Use the result to determine the height from which an object was dropped if it hits the ground after falling for 3 seconds.
A. h = 4.9t; 14.7 m B. h = 4.9t2; 44.1 m C. h = 24.01t2; 216.1 m D. h = 24.01t; 72 m
In 2008, Yolanda paid $3,875 in Social Security tax. If the Social Security tax rate was 6.2% to the maximum income of $94,200 that year, what was Yolanda's taxable income?
A. $6,250 B. $38,750 C. $62,500 D. $66,375