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1. |
Which is the graph of the inequality x > -2? |
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A. |
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B. |
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C. |
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D. |
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Hint |
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2. |
Evaluate sin (arctan  ). Assume that the angle is in Quadrant I. |
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A. |
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B. |
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C. |
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D. |
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Hint |
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3. |
State the amplitude, period, phase shift, and vertical shift for
 |
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A. |
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B. |
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C. |
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D. |
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Hint |
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4. |
Write an equation for a secant function with period 2 , phase shift  , and vertical shift 1. |
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A. |
y = sec  + 1 |
B. |
y = sec  + 1 |
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C. |
y = sec - 1 |
D. |
y = sec - 1 |
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Hint |
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5. |
Complete the identity of  _________. |
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A. |
sin x |
B. |
cos x |
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C. |
cot x |
D. |
tan x |
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Hint |
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6. |
If sin  =  and has its terminal side in the first quadrant, find the exact value of cos 2. |
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A. |
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B. |
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C. |
1 |
D. |
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Hint |
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7. |
Identify the conic section represented by the equation
2x2 - 6x + 2y2 + 12y + 18 = 0. |
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A. |
circle |
B. |
ellipse |
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C. |
parabola |
D. |
hyperbola |
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Hint |
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8. |
Which series is convergent? |
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A. |
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B. |
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C. |
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D. |
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Hint |
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9. |
Use limits to find the area between the curve y = x and the x-axis from
x = 0 to x = 2. |
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A. |
2 units2 |
B. |
4 units2 |
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C. |
6 units2 |
D. |
5 units2 |
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Hint |
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10. |
Write an equation of a line that has no slope and passes through
the point (5,-6). |
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A. |
y = -6 |
B. |
x = -6 |
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C. |
x = 5 |
D. |
y = 5 |
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Hint |
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11. |
Ilene analyzed her test scores and determined the equation of the best-fit line was y = 4.25x + 72. Predict her score for the 5th test. |
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A. |
93.25 |
B. |
88.75 |
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C. |
72.5 |
D. |
98.5 |
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Hint |
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12. |
Solve the system of 3 equations by substitution. x = 3y + 2z
2x + 3y + 2z = 3
-x + y - z = 6 |
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A. |
(8, 4, -2) |
B. |
(1, 3, -4) |
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C. |
infinite solutions |
D. |
no solution |
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Hint |
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13. |
Set up a matrix equation for this chemistry problem. How many liters of 0.25 solution and 0.40 solution should be combined to make 10 liters of 0.35 solution? |
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A. |
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B. |
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C. |
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D. |
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Hint |
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14. |
Graph the point T . |
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A. |
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B. |
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C. |
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D. |
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Hint |
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15. |
Simplify  . |
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A. |
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B. |
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C. |
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D. |
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Hint |
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16. |
Evaluate | 5 – 2i |. |
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A. |
29 |
B. |
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C. |
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D. |
21 |
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Hint |
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17. |
Express the complex number -9 – 4i in polar form. |
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A. |
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B. |
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C. |
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D. |
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Hint |
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18. |
Find the product  . Express the result in rectangular form. |
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A. |
-54i |
B. |
54 |
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C. |
54i |
D. |
-54 |
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Hint |
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19. |
The number of bacteria in a culture can be modeled by the exponential function N = 6.5828(1.1769)t, where t is the number of hours. What will the number of bacteria be in 19 hours? Round to nearest whole number. |
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A. |
177 |
B. |
203 |
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C. |
145 |
D. |
121 |
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Hint |
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20. |
Find the interquartile range of the set of data below.
20, 15, 23, 14, 18, 12, 25, 10, 24, 12, 17 |
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A. |
9 |
B. |
15 |
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C. |
5 |
D. |
11 |
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Hint |
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