IntPracTest2ans

IntPracTest2ans - Practice Test 2 Answers 1. 2. 3. 4. 5. 6....

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Unformatted text preview: Practice Test 2 Answers 1. 2. 3. 4. 5. 6. 7. 18 7 x > −9, ( −9, ∞ ) x= −5 ≤ x < 1, [ −5,1) ( −∞, −3] ∪ ( 2, ∞ ) A) x = −3 B) x < −3 A) x = −2 B) x > −2 y 8 6 4 2 -8 -6 -4 -2 -2 -4 -6 -8 2 4 6 8 x 8. 9. x ≈ 0.981 x > 2.4 10. ( −4.5, 2.7 ) 11. ( −5, 7 ) 12. ( 2.5, −4 ) 13. She sold 275 bottles of sunscreen and 125 visors. 14. He invested $1260 at 3.5% and $6240 at 6.2%. 15. Either by graphing or by writing the equations in slope-intercept form, one finds that the equations actually represent the same line. Therefore, Rudy was wrong. In fact, there are infinitely many solutions to the system. It is a dependent system. ...
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This note was uploaded on 10/18/2011 for the course MAT 1033 taught by Professor Brown during the Spring '10 term at Valencia.

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