1. 25.01 + 36.5 + 200.35 =
(a) 81.545 (b) 228.91 (c) 229.01 (d) 261.41 (e) 261.86
2. -5[4 - (-3)(2)] =
(a) -70 (b) -50 (c) -10 (d) 5 (e) 10
3. If \( \frac 43x - \frac 12 = {}\)0 , then \(x =\)
(a) 3/8 (b) 2/3 (c) 3/2 (d) 11/6 (e) 8/3
4. \( (-8p^2q)(-4p^4q^5) = \)
(a) 32p5q6 (b) 4p-4q-2 (c) 32p6q6 (d) 4p5q8 (e) -2p5q8
5. If x2 + 2x = 3, then x could equal
(a) -3 (b) -2 (c) -1 (d) 0 (e) 3
6. The polynomial equation x(x2 + 4)(x2 - x - 6) = 0 has how many real roots?
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 (b) x + y = 1 and x + y = -2 (c) x + y = 3 and 2x + 2y = 6 (d) x + y = 3 and x - y = 5 (e) x - y = 7 and x - y = 14
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,
then f(x) < 0 whenever