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1. |
Marita always listens to her favorite radio station, an oldies station, when she drives her car. Every morning she listens to her radio on the way to school. On Monday, she turns on her car radio and it is playing country music. Which of the following is a valid conjecture for why her radio is playing different music? |
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A. |
A country music station bought out her favorite music station over the weekend. |
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B. |
Someone used her car during the weekend and changed the station. |
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C. |
Her favorite station has changed their morning program to include country music. |
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D. |
All statements are valid conjectures. |
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Hint |
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2. |
Order the steps for writing an indirect proof. |
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A. |
1, 2, 3 |
B. |
2, 3, 1 |
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C. |
3, 2, 1 |
D. |
2, 1, 3 |
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Hint |
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3. |
Make a conjecture based on the following information.  M is obtuse. |
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A. |
M is straight |
B. |
M is acute |
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C. |
mM = 30 |
D. |
mM is not 180 |
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Hint |
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4. |
Which postulate can be used to prove the triangles congruent? |
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A. |
ASA Postulate |
B. |
not possible |
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C. |
SAS Postulate |
D. |
SSS Postulate |
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Hint |
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5. |
 ABC  XYZ.
If BM = 5, YZ = 4, and XY = 8, then AB = ______. |
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A. |
20 |
B. |
40 |
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C. |
17 |
D. |
10 |
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Hint |
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6. |
Find the surface area of the right cylinder. (Round to the nearest whole number.) |
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A. |
1508 sq. units |
B. |
1156 sq. units |
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C. |
955 sq. units |
D. |
540 sq. units |
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Hint |
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7. |
What is the locus of points in space that are 2 units from a given line segment 7 units long? |
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A. |
A sphere of radius 7. |
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B. |
A sphere of radius 3.5. |
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C. |
A right cylinder of radius 1 and height 7 and hemispheres with radius 1 on each end of the cylinder. |
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D. |
A right cylinder with height 7 and radius 2 and hemispheres with radius 2 on each end of the cylinder. |
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Hint |
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8. |
A ticket service is selling tickets to a concert. An order of 4 tickets has a price of $63 and an order of 6 tickets has a price of $92. Write an equation to find the price of any amount of tickets. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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9. |
What is the y-intercept of the graph of the line with equation  |
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A. |
-7 |
B. |
 |
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C. |
7 |
D. |
 |
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Hint |
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10. |
Which of the following is true concerning matrix multiplication of three matrices A, B, and C? |
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A. |
AB = BA for no cases |
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B. |
C(A + B) = CA + CB |
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C. |
AB = BA for all cases |
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D. |
(A + B)C = CA + CB |
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Hint |
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11. |
A bag contains 10 red marbles, 5 gray marbles, 12 black marbles, and 8 white marbles. Two marbles are randomly drawn from the bag without replacement. What is the probability of drawing a white marble followed by a marble that is not black? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
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Hint |
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12. |
What is the value of cell A3? |
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A. |
9 |
B. |
18 |
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C. |
90 |
D. |
6 |
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Hint |
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13. |
Find the next two terms of the sequence  |
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A. |
 |
B. |
 |
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C. |
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D. |
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Hint |
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14. |
What are the next 3 terms in the sequence 1, 4, 3, 6, 5….? |
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A. |
7, 10, 9 |
B. |
8, 7, 10 |
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C. |
7, 8, 9 |
D. |
8, 10, 11 |
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Hint |
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15. |
Given  find  |
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A. |
6 |
B. |
-3 |
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C. |
3 |
D. |
-6 |
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Hint |
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16. |
How many square feet of tiles are needed to cover the floor shown? Round the answer to the nearest tenth. |
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A. |
2123.5 ft2 |
B. |
238.5 ft2 |
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C. |
2490.8 ft2 |
D. |
2173.5 ft2 |
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Hint |
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17. |
Which of the following cannot be true concerning solving a system of equations by determinants? |
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A. |
ed - bf = 0 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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18. |
Solve  by the method of determinants. Round to the nearest hundredth. |
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A. |
(2.46, 1.20) |
B. |
(-1.86, -2.20) |
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C. |
(1.86, 2.20) |
D. |
(1.68, 4.40) |
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Hint |
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19. |
A scale drawing of a room has a scale of 1 inch = 2.5 feet. How long is a wall that is 7 inches? |
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A. |
17.5 ft |
B. |
2.8 ft |
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C. |
0.36 ft |
D. |
175 ft |
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Hint |
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20. |
A farmer raises two crops that are shipped to 3 distributors. The table shows the number of crates shipped to each distributor. The profit on crop 1 is $2.50 per crate. The profit on crop 2 is $2.75 per crate. Find the amount of profit from Distributor B. |
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A. |
$770 |
B. |
$2095 |
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C. |
$1540 |
D. |
$1542.50 |
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Hint |
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