Reference no: EM131071373
1. Consider the interval [0, ¥). For each numerical value below, is it in the interval or not?
(Just answer Yes or No)
5 - 9 _______ 0 _______ | -8.2 | _______ - 7 2 _______ - 3.6 x 10 5 _______
(Yes or No) 4 (Yes or No) (Yes or No) (Yes or No) (Yes or No)
2. Write the interval notation corresponding to the set notation {x | x £ -1}.
3. Perform the indicated operations and simplify: (8 -1 - 10-1) -1 Show work.
4. Perform the indicated operations and simplify: {225 x 5-2} / {(-9)2 x 3-3} Show work.
Note: X is a multiplication symbol here, not a variable.
5. Solve the absolute value inequality |7 - 3x| ≤ 25. Show work. Write interval notation for the solution set.
6. Solve the absolute value inequality |9x - 4| ³ 14. Show work. Write interval notation for the solution set.
7. Simplify: √98- √18 + √50x2 Show work. Give the exact answer (including a radical).
8. Factor. (Work not required to be shown).
(a) 16x2 - 25
(b) 5x2 - 16x + 12
9. (12 pts) Perform the indicated operations and simplify to get a polynomial:
(6x - 1)(3x + 5) - (2x - 9)2 Show work.
10. Solve the equation x(x - 3) = 4. Show work.
11. Solve the equation 7 - 3(4 - x) = 5(x + 2). Show work.
12. Simplify: (6x- 1)(3x + 5) -(2x - 9)2 Show work.
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