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1. |
In a science experiment, students hung a cup from a spring and measured the length of the spring when candies were added to it. Their data are shown in the table below. Which statement is true? |
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A. |
The relation is a function because the range values increase. |
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B. |
The relation is not a function because there are two y values for some x values. |
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C. |
The relation is not a function because only a line can be a function. |
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D. |
The relation is a function because for each x value, there is exactly one y value. |
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Hint |
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2. |
Which interval has the most values? |
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A. |
70-80 |
B. |
60-70 |
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C. |
90-100 |
D. |
10-20 |
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Hint |
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3. |
Solve  |
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A. |
n =  |
B. |
n = 2 |
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C. |
n =  |
D. |
n = 9 |
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Hint |
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4. |
Which triangle is similar to  |
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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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5. |
Food Some cafeteria trays are shaped like isosceles trapezoids so they will fit around the tables. If the measures of one pair of base angles of a tray are 120, what are the measures of the other pair of base angles? |
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A. |
240 |
B. |
90 |
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C. |
120 |
D. |
60 |
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Hint |
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6. |
Find the value of y in the figure. |
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A. |
7 |
B. |
4 |
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C. |
8 |
D. |
5 |
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Hint |
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7. |
The diameter of a circle is 8. What is the radius? |
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A. |
4 |
B. |
16 |
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C. |
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D. |
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Hint |
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8. |
The segment that has one endpoint at one of the vertices of a triangle and its other endpoint on a line containing the opposite side of the triangle, and is perpendicular to the opposite side of the triangle, is called the __________. |
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A. |
angle bisector |
B. |
median |
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C. |
altitude |
D. |
perpendicular bisector |
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Hint |
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9. |
Ed has a piece of rope with exactly 10 knots tied to make 9 equal lengths as shown. Using the rope, he wants to use the entire rope to make a triangle so that each vertex of the triangle occurs at a knot. How many different triangles can Ed make? |
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A. |
3 |
B. |
2 |
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C. |
5 |
D. |
4 |
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Hint |
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10. |
The exterior angle of a regular polygon is 32.7°. Find the number of sides. |
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A. |
7 |
B. |
11 |
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C. |
6 |
D. |
10 |
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Hint |
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11. |
Evaluate  if x = -13, y = -10, and z = -5. |
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A. |
24 |
B. |
-26 |
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C. |
26 |
D. |
-24 |
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Hint |
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12. |
Which equation describes the line that contains the points (7, 17) and (15, 33)? |
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A. |
 |
B. |
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C. |
y = 2x + 3 |
D. |
y = -2x + 31 |
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Hint |
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13. |
Write the slope-intercept form of an equation for the line that passes through (-4, -26) and is parallel to  |
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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. |
Solve the equation 3y + 8 = 36. |
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A. |
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B. |
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C. |
20 |
D. |
4 |
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Hint |
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15. |
Find the slope of the line below. |
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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. |
Use substitution to solve the system of equations given by y =  and 28x – 32y = -8. |
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A. |
infinitely many solutions |
B. |
(2, 2) |
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C. |
no solution |
D. |
(1, 1) |
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Hint |
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17. |
If parallelogram RSTV is a rhombus, what angles does  bisect? |
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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. |
The measure of a pair of base angles of an isosceles trapezoid are (4x + 10) ° and (2x + 36) °. What is the measure of one base angle? |
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A. |
120° |
B. |
62° |
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C. |
12° |
D. |
118° |
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Hint |
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19. |
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. |
2173.5 ft2 |
B. |
2490.8 ft2 |
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C. |
238.5 ft2 |
D. |
2123.5 ft2 |
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Hint |
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20. |
Solve  for n by the method of determinants. |
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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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