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1. |
Determine whether the triangles are similar. If not, explain why not. |
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A. |
no, b = 40 |
B. |
no, b = 110 |
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C. |
yes |
D. |
no, a = 30 |
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Hint |
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2. |
To burn off the Calories from a 12-ounce can of regular cola, you would have to cycle 24 minutes at 13 miles per hour. How long would you have to cycle at the same speed to burn off the Calories from a 20-ounce bottle of soda? |
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A. |
20 minutes |
B. |
30 minutes |
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C. |
10 minutes |
D. |
40 minutes |
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Hint |
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3. |
About 1 out of every 5 people is left handed. If there are 40 students in a class, how many would you expect to be left handed? |
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A. |
9 |
B. |
6 |
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C. |
7 |
D. |
8 |
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Hint |
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4. |
A pentagon is a polygon with five sides. If pentagons ABCDE and HIJKL are similar, find the length of side JK. |
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A. |
12 m |
B. |
3 m |
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C. |
2 m |
D. |
1.5 m |
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Hint |
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5. |
A staff's shadow is 8 feet and a tree's shadow is 16 feet. If the staff is 9 feet tall, how tall is the tree? |
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A. |
9 ft |
B. |
18 ft |
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C. |
12 ft |
D. |
15 ft |
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Hint |
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6. |
If the actual distance between two airports is 375 kilometers and the distance on a map is 8 centimeters, what is the scale for the map? |
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A. |
1:4,687.5 = 2:9,375 |
B. |
1:468,750 |
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C. |
1:4,687,500 |
D. |
1:46,875 |
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Hint |
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7. |
Find the coordinates of the image of the point A(3, 9) for a dilation with the scale factor of  |
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A. |
A'(9, 27) |
B. |
A'(6, 18) |
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C. |
A'(2, 6) |
D. |
A'(4.5, 13.5) |
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Hint |
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8. |
Express $120.00 over 15 hours as a unit rate. |
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A. |
$13.00 per hour |
B. |
$8.00 per hour |
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C. |
$10.00 per hour |
D. |
$12.50 per hour |
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Hint |
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9. |
Antonio has been keeping a food log for health class. At the end of the week, Antonio found he had eaten 10,010 calories from carbohydrates, 3,850 calories from protein, and 1,540 calories from fat. Which ratio compares Antonio's calories eaten from fat to his total eaten calories for the week? |
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A. |
 |
B. |
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C. |
 |
D. |
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Hint |
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10. |
On a map with a scale of 1 inch = 100 miles, the distance between two cities is 7.5 inches. If a person travels 55 miles per hour, how long will it take to travel from one town to the other? |
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A. |
about 12 hours and 44 minutes |
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B. |
about 13 hours and 9 minutes |
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C. |
about 12 hours and 30 minutes |
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D. |
about 13 hours and 38 minutes |
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Hint |
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11. |
What is the ordered pair of the image of A(-2, 4) if the scale factor is 5? |
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A. |
(-0.4, 0.8) |
B. |
(-10, 20) |
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C. |
(3, 9) |
D. |
(10, 20) |
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Hint |
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12. |
The table shows the value of a car as it gets older. Find the rate of change in value of the car from the third year to the fifth year. |
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A. |
-$1,400 per year |
B. |
-$1,250 per year |
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C. |
-$1,500 per year |
D. |
-$2,500 per year |
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Hint |
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13. |
The graph shows the fuel efficiency for the light duty trucks in the United States. Find the rate of change in the fuel efficiency from 1999 to 2000. |
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A. |
-0.4 mpg per year |
B. |
-0.2 mpg per year |
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C. |
0.075 mpg per year |
D. |
0 mpg per year |
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Hint |
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14. |
The graph shows the distance traveled by some hikers. Interpret the meaning of the slope as a rate of change. |
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A. |
The hikers have traveled a total of 6 miles. |
B. |
The hikers are traveling at a rate of 3 miles per hour. |
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C. |
The hikers have traveled a total of 3 miles. |
D. |
The hikers are traveling at a rate of 6 miles per hour. |
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Hint |
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15. |
Kata has a part time job. The graph shows the amount she makes. Interpret the meaning of the slope as a rate of change. |
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A. |
Kata earns $30 per hour. |
B. |
Kata earns $10 for her work. |
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C. |
Kata earns $10 per hour. |
D. |
Kata earns $30 for her work. |
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Hint |
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16. |
The two triangles shown in the figure are similar. Find the distance d across the river. |
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A. |
81 meters |
B. |
18 meters |
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C. |
25 meters |
D. |
16 meters |
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Hint |
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