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1260-f09-t1-sol_00001

# 1260-f09-t1-sol_00001 - [2 a a 4 =[2 b)ka2.blOj 8 Simplify...

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Math 1260 - Fall 2009 TEST#1 SHOW ALL YOUR WORK FOR FULL CREDIT! NAME 1. Perform the indicated operations: [2] a. - 5(4a 2 + 3a - 7) - 3(7a 2 + 4a - 1) [3] b. (3q-1)(5q2-2q+4) 2. Factor each polynomial as much as possible: [2] a. 3a 3 -12a ~ +9a [2] b. 25x2-49 [2] c. 3x 2 - 8xy + 4y 2 3. Perform the indicated operations and simplify: n2 +3n+2 n2 +lOn+ 24 n2 +5n+4 n2 +5n+6 [3] b. 5 2 y2+4y+3 y2_2y_3

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4. Solve the following equations: [2] a) 4a+3(a-2)+7=2a+5 70- +1 : 2ca ~ .5 -i 5 1 7 [S] c. -4 x x-5 x 2 -5x [3] b) 2x ~-5x+l=O 5. Solve and graph the following inequalities: [3] a) x+4-2(3x-5)+4>2x-1
7 >_o g~lse ~ru~ [2] 6. Evaluate the expression 16 -3/2 : ~ 7. Simplify the following as much as possible. Write ans~vers with only positive exponents.

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Unformatted text preview: [2] a) a 4 = [2] b)ka2.blOj 8. Simplify each expression by removing as many factors as possible from under the radical: 121 a. ~ 121 b. 2~/~ - 5~8 + 3~/6~ 3 [1] c. Rationalize the denominator: ~ 7 [2] d. Rationalize the denominator: [3] 9. Erin borrows \$1100 fi’om her grandparents at 4% simple interest for t 1 months. How much must she pay back at the end of the 11 months? llOO (1÷ ocl [3] 10. A man deposits \$4000 in a savings account that pays 2% interest compounded quarterly. How much will the account be worth in 10 years? Formulas: Simple Interest: A = P(1 + rt) Compound Interest: A = P(I+ i)" TOTAL SCORE...
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