# 25 Questions – Algebra 2, College level.

(See attached file for full problem description with complete equations)

1. The diameter of the Milky Way disc is approximately 9  1020 meters. How long does it take light, traveling at 1016 m/year to travel across the diameter of the Milky Way?

2. Divide.

3. Multiply. Write the answer in scientific notation.
(2.4  10-5)(4  10-4)

4. Simplify.

5. Multiply. (a2 + 2ab – b2)(a2 – 7ab + b2)

6. Factor completely. 12×3 – 3xy2

7. Factor. 8m4n – 16mn4

8. The product of two consecutive positive even integers is 288. Find the integers.

9. Factor completely. 3×2 – 5xy + 3x – 5y

10. Factor completely. 5×2 + 33x + 18

11. Write in simplest form.

12. Solve.

13. Multiply.

14. During rush hour, Fernando can drive 40 miles using the side roads in the same time that it takes to travel 30 miles on the freeway. If Fernando’s rate on the side roads is 7 mi/h faster than his rate on the freeway, find his rate on the side roads.

15. Solve.

16. Simplify.

18. Find the altitude (or height) of the triangle.

19. Evaluate , if possible.

20. Use a calculator to approximate to the nearest hundredth.

21. Match the graph with its equation.

A) y = -x2 + x B) y = -x2 + 1 C) y = -x2 + 2x D) y = -x2 – 1

22. Solve by completing the square.
x2 – 10x + 24 = 0

23. A rectangular garden is to be surrounded by a walkway of constant width. The garden’s dimensions are 30 ft by 40 ft. The total area, garden plus walkway, is to be 1800 ft2. What must be the width of the walkway to the nearest thousandth?

24. Solve by using the quadratic formula. 3×2 = 11x + 4

25. Identify the axis of symmetry, create a suitable table of values, then sketch the graph (including the axis of symmetry).

y = -x2 + 3x – 3

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