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- 1. Multiple ChoiceWhat expression is equivalent to x² - 81?(x + 81)(x -1)(x + 9)(x + 3)(x - 3)(x - 9)(x - 9)(x - 9)(x + 9)
- 2. Multiple Choice
Suppose that the equation
V = 20x2 - 363.2x +2500, represents the value of a car from 1962 – 2000. If the year 1962 is represented by x = 0, what year did the car have the least value?
1969
1971
1975
1999
- 3. Multiple Choice
At the airport, the new runway will be parallel to a nearby highway. On the scale drawing of the airport, the equation that represents the highway is 6y = 8x - 11. Which equation could represent the new runway?
9y = 12x + 5
9x = 12y + 8
12y = -9x + 2
12x = -9y + 4
- 4. Multiple Choice
What is the value of the x-coordinate in the system below?
x + 2y = -3
x - y = -12
-9
-7
3
9
- 5. Multiple Choice
What is the solution to the system below?
8x + 4y = 12
y = -2x + 3
(0,3)
(3,0)
No solution
Infinitely many solutions
- 6. Multiple ChoiceAn object in launched directly upward at 64 feet per second (ft/s) from a platform 80 feet high. Its height is represented by the equation s(t) = –16t2 + 64t + 80. What will be the object's maximum height?2 ft80 ft144 ft64 ft
- 7. Multiple ChoiceA paper copier reduces paper dimensions by 25% each time it copies. If the design on the paper is 7 inches wide before it is copied, how wide is it after you copy it 5 times?5.25 inches1.66 inches2.21 inches21.36 inches
- 8. Multiple Choice
Which is an equation of a line that passes through (2,8) and is parallel to line GH?
2x + y = 6
2x + y = 8
2x + y = 10
2x + y = 12
- 9. Multiple Choice
At which point do the graphs of 2x = y + 5 and 6x + 2y = -5 intersect?
(2, -4)
(-4, 1)
(1/2, -4)
(-3/2, -8)
- 10. Multiple Choice
Which inequality describes the graph?
- 11. Multiple ChoiceA fitness club opens with 80 members. Each month the membership increases by 15 members. Which equation represents the relationship between the number of months the club has been opened, x, and the total fitness club membership, y?y=15xy=15x+80y=x+15y=80x+15
- 12. Multiple Choice
What are the zero(s) of the equation
2x2 - 5x - 7 = 0?
{-7/2, 1}
{7/2, -1}
{-7/2, -1}
{3, -1}
- 13. Multiple Choice(4x+1)(5x−2)20x2 + 3x − 220x2 − 11x + 520x2 − 18x + 220x2 − 3x − 2
- 14. Multiple Choice
If a student with a GPA of 1.5 is added to the group, how would the mean and median be affected?
The mean and median would stay the same.
The mean would decrease and the median would stay the same.
The mean would stay the same the median would decrease.
The mean and median would decrease.
- 15. Multiple Choice
The table shown is comparing a person's foot length to their height in cm. According to the linear regression model, what is the length of someone that is 168 cm tall?
25.05
25.661
960.936
42.35
- 16. Multiple Choice
Enterprise charges to rent compact cars for a fixed amount per day plus a fixed amount for each mile driven. Batman rented a car for 6 days, drove it 550 miles and spent $337. Superman rented the same car for 3 days, drove for 350 miles and spent $185. Set up the system. Let "d" represent the fixed charge per day and "m" represent the cost per mile.
6d + 550m = 337
3d + 350m = 185
6d + 550m = 185
3d + 350m = 337
6m + 550d = 337
3m + 350d = 185
6m + 550d = 185
3m + 350d = 337
- 17. Multiple ChoiceSolve 2x2 + 7x - 15 = 0-1.5 or 5No Solution-5 or 1.50.7 or 5
- 18. Multiple Choice
Caleb and Kiki have bowled three games. Their scores are 151, 153, 146, and 135, 139, 142, respectively. Who has more consistent scores?
Kiki's scores are more consistent.
Caleb's scores are more consistent.
Both scores have the same consistency!
Not enough information is provided.
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