7. If f(a) = 2a -1 and g(a) = a2, then g(f(a)) =
8. If 7x = 3, then x = (a) 3/7 (b) 7/3 (c) log3(7) (d) log7(3) (e) log10(7/3)
9. If t = ex + 2 , then x = (a) 2 + ln(t) (b) (t + 2)/e (c) t/e (d) ln(t - 2) (e) ln(t) - 2
10. The inequality x2 - 14x > 15 is equivalent to
11. The two parallel lines represent the graph of which of the following pair of equations? (a) x - 2y = 3 and x - 2y = 7
12. Of the following numbers, which is largest?
13. Triangle ABC is an equilateral triangle. The height h is:
(a) -8 (b) -(1/8) (c) 0 (d) (1/8) (e) 8
15. For all real numbers x , cos2(x) - sin2(x) = (a) 0 (b) 1 (c) sin(2x) (d) cos(2x) (e) cos(x/2)
16. If f is a function whose graph is sketched below,
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