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1. |
The diameter of a volcanic particle averaged 0.000022 meter. What is this measure written in scientific notation? |
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A. |
2.2 × 10-5 |
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B. |
2.2 × 105 |
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C. |
0.22 × 10-4 |
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D. |
2.2 × 10 |
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Hint |
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2. |
A fruit drink that was sold in 16-ounce containers is now sold in
20-ounce containers. What is the percent of change in quantity? |
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A. |
20% |
B. |
16% |
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C. |
25% |
D. |
4% |
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Hint |
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3. |
A bag contains 6 red marbles, 5 blue marbles, 5 yellow marbles, and 4 green marbles. What is the probability or randomly picking a marble that is blue? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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4. |
Which equation represents exponential decay? |
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A. |
y = 2.62(1.22)x |
B. |
y = 1.05(0.95)x |
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C. |
y = 1.7(1.06)x |
D. |
y = 0.86(1.46)x |
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Hint |
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5. |
Determine the volume of the figure below to the nearest tenth. |
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A. |
39.8 m3 |
B. |
30.6 m3 |
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C. |
33.3 m3 |
D. |
10 m3 |
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Hint |
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6. |
Callie conducted a survey to determine students' favorite color. Of the students she surveyed, 18 out of 48 preferred blue. If there are 600 students in her school, how many would you expect to prefer blue? |
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A. |
225 |
B. |
200 |
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C. |
320 |
D. |
240 |
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Hint |
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7. |
Meng conducted a survey to determine the favorite flavor of ice cream in his hometown. Fifteen of the fifty people he surveyed liked strawberry best. How many of the 3,500 residents in the town would you expect to like strawberry best? |
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A. |
560 |
B. |
750 |
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C. |
150 |
D. |
1,050 |
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Hint |
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8. |
Find 53 · 57 |
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A. |
2510 |
B. |
25-4 |
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C. |
510 |
D. |
54 |
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Hint |
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9. |
Using the formula for the area of a trapezoid  , find A
if h = 7 cm, b1 = 3 cm, and b2 = 5 cm. |
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A. |
25 cm2 |
B. |
28 cm2 |
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C. |
7.5 cm2 |
D. |
18 cm2 |
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Hint |
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10. |
Use the clues on the dot diagram to find the unknown values. |
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A. |
a = 10, b = 22 |
B. |
a = 3, b = 15 |
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C. |
a = 1, b = 11 |
D. |
a = 5, b = 17 |
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Hint |
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11. |
Rewrite k9 ÷ k3 using a single base. |
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A. |
3k3 |
B. |
k6 |
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C. |
k3 |
D. |
k27 |
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Hint |
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12. |
Simplify (d1)26. |
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A. |
d27 |
B. |
d25 |
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C. |
d26 |
D. |
26d |
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Hint |
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13. |
Evaluate –52. |
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A. |
10 |
B. |
–10 |
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C. |
25 |
D. |
–25 |
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Hint |
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14. |
Find the proportional relationship. |
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A. |
A phone company that charges a monthly fee of $3.95 and $0.05 per minute on all calls. |
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B. |
A phone company that charges a flat monthly fee of $29.95 for unlimited calls day or night. |
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C. |
A phone company that charges a monthly fee of $4.95, $0.01 per minute between the hours of 7:00 P.M. and 7:00 A.M., and $0.10 for all other calls. |
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D. |
A phone company that charges $0.10 per minute on all calls. |
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Hint |
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15. |
Which table represents a linear relationship? |
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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. |
Find a solution to the equation using backtracking.
 |
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A. |
x = 11 |
B. |
x = 8 |
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C. |
x = 9 |
D. |
x = 10 |
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Hint |
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17. |
Find a solution to the equation using guess-check-and-improve.
–25 – 3k = –7 + 3k |
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A. |
k = –3 |
B. |
k = –6 |
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C. |
k = 4 |
D. |
k = 1 |
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Hint |
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18. |
The two figures below are similar. Which segment is similar to PJ?. |
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A. |
segment ZT |
B. |
segment YZ |
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C. |
segment UV |
D. |
segment UT |
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Hint |
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19. |
What is the form of an equation for a doubling pattern? |
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A. |
y = x2 |
B. |
y = 2x |
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C. |
y = x + 2 |
D. |
2y = x |
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Hint |
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20. |
The following table shows the results of rolling a number cube twenty times. What is the experimental probability of rolling a 4? |
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A. |
 , or |
B. |
 , or |
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C. |
 , or  |
D. |
 |
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Hint |
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