Name: __________________________________________ Period



Name: __________________________________________ Period: __________________ Date: __________________

Exam 9 Practice

DIRECTIONS: Read each question carefully and choose the correct answer.

1. What is the square root of 0.49?

A. 0.02401

B. 0.07

C. 0.2401

D. 0.4

2. The quadratic formula is used to solve [pic]. What value should be substituted for n in the following equation?

[pic]

A. 13

B. 31

C. 37

D. 73

3. What are the roots of [pic]?

A. [pic] and [pic]

B. [pic] and [pic]

C. [pic] and [pic]

D. [pic] and [pic]

4. Simplify[pic], where [pic].

A. [pic]

B. [pic]

C. [pic] remainder 1

D. [pic] remainder 1

5. Use the laws of exponents to simplify the following expression.

[pic]

A. [pic]

B. [pic]

C. [pic]

D. [pic]

6. Subtract [pic] from [pic].

A. [pic]

B. [pic]

C. [pic]

D. [pic]

7. Reduce the following fraction to simplest terms. Assume the denominator cannot equal zero.

[pic]

A. [pic]

B. [pic]

C. [pic]

D. [pic]

8. The volume of a right circular cylinder is [pic], and its surface area is [pic], where r is the radius and h is the height of the cylinder. What is the ratio of the volume to the surface area, expressed in simplified form?

A. [pic]

B. [pic]

C. [pic]

D. [pic]

9. What is the solution set for the equation [pic]?

A. [pic]

B. [pic]

C. [pic]

D. [pic]

10. Dog food selling for $1.00 per pound is to be mixed with a high protein blend selling for $3.00 per pound. How many pounds of the high protein blend is needed to produce a 50 pound mixture that sells for $2.00 per pound?

A. 10

B. 20

C. 25

D. 35

11. The first two steps in deriving a solution for quadratic equations are shown below. Which of the following equations should be Step 3?

[pic]

A. [pic]

B. [pic]

C. [pic]

D. [pic]

12. What is the solution set of the equation [pic]?

A. [pic]

B. [pic]

C. [pic]

D. [pic]

13. A graph of a quadratic function has x-intercepts of [pic] and [pic]. Which of the following quadratic functions could match this graph?

A. [pic]

B. [pic]

C. [pic]

D. [pic]

14. A ball is thrown upward at a velocity of 12 feet per second from a height that is 40 feet above the ground. The height A (in feet) of the ball at time t (in seconds), after it is thrown, can be found by the formula below.

[pic]

Find the time, in seconds, when the ball is again 40 feet above the ground.

A. 1

B. [pic]

C. 2

D. [pic]

15. Which of the following shows [pic] written in factored form?

A. [pic]

B. [pic]

C. [pic]

D. [pic]

16. Simplify [pic]. Assume the denominator cannot equal zero.

A. [pic]

B. [pic]

C. [pic]

D. [pic]

17. What is the graph of the equation [pic]?

A. [pic] B. [pic]

C. [pic] D. [pic]

18.

19. Simplify the following expression. Put your answer in simplest form.

[pic]

A. [pic]

B. [pic]

C. [pic]

D. [pic]

20. The area of the trapezoid below can be found by the formula[pic].

[pic]

The area of this trapezoid is 28 square inches. If [pic]and [pic], find the length of h in inches.

A. 3

B. 4

C. 7

D. 10

21. Ron can rake and bag the leaves in his backyard in 4 hours, while his brother Mark can do the same job in 6 hours. How many hours will it take them to rake and bag the leaves in their backyard if they work together?

A. [pic]

B. 2

C. [pic]

D. 7

22. What is the cube root of [pic]?

A. 8

B. [pic]

C. [pic]

D. 8

23. An equation in the form [pic] is solved by the quadratic formula. The solution to the equation is shown below. What are the values of a, b, and c in the quadratic equation?

[pic]

A. [pic]

B. [pic]

C. [pic]

D. [pic]

24. A rectangle has a length of x inches and a width 4 inches less than the length. If the dimensions were tripled, what would be the area of the new rectangle in terms of x?

A. [pic]

B. [pic]

C. [pic]

D. [pic]

25. Solve [pic]. The answer must be in simplest form.

A. [pic]

B. [pic]

C. [pic]

D. [pic]

26. Simplify [pic]. Assume the denominator cannot equal zero.

A. [pic]

B. [pic]

C. [pic]

D. [pic]

27. The graph of which of the following equations has x-intercepts of -9 and 0?

A. [pic]

B. [pic]

C. [pic]

D. [pic]

28. A ball is thrown in the air. The relationship between the time the ball is in the air in seconds (t) and the height of the ball in feet above the ground (h) is represented by [pic]. How many seconds will it take for the ball to hit the ground?

A. [pic]

B. [pic]

C. 3

D. 6

29. What number should be added to both sides of the equation below to solve the equation by completing the square?

[pic]

A. [pic]

B. [pic]

C. [pic]

D. [pic]

30. Kurt has a collection of 1035 United States and Canadian stamps. He has 3.5 times as many United States stamps as Canadian stamps. How many United States stamps does Kurt have in his collection?

A. 230

B. 575

C. 805

D. 1035

31. If the sum of x and y is 35 and y is 4 more than three times x, which of the following systems of equations could be used to solve for x and y.

A. [pic]

B. [pic]

C. [pic]

D. [pic]

32. An object is thrown upward. The height of the object after being thrown can be modeled by the equation [pic], where h is the height above the ground in meters and / is the time in seconds.

• At what time(s) would the object be located at 140 meters above the ground? Show your work.

• Sketch the graph of the equation on the grid below. Be sure to include the intercepts.

[pic]

• Is the maximum height of the object greater than, less than, or equal to 75 meters? Explain your answer.

................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download