Factor completely.9x2 - 3xt - 2t2
A. (9x + t)(x - 2t)
B. (3x + t)(3x - 2t)
C. Prime
D. (3x - t)(3x + 2t)
Answer: B
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Solve the problem.What is the y-intercept of y = tan x?
A. 1
B. 0
C. 
D. none
Solve the problem.Five friends drove at an average rate of 55 miles per hour to a weekend retreat. On the way home, they took the same route but averaged 70 miles per hour. What was the distance between home and the retreat if the round trip took 10 hours?
A. 616 mi
B. 5
mi
C. 308 mi
D. 2566
mi
Use the Factor Theorem to determine whether x - c is a factor of f(x).f(x) = 60x3 + 46x2 - 42x - 22; x - 
A. Yes B. No
Solve the problem.Use the formula N = Iekt, where N is the number of items in terms of the initial population I, at time t, and k is the growth constant equal to the percent of growth per unit of time. An artifact is discovered at a certain site. If it has 47% of the carbon-14 it originally contained, what is the approximate age of the artifact? (carbon-14 decays at the rate of 0.0125% annually.)
A. 2623 years B. 4240 years C. 6040 years D. 3760 years