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messersmith_power_introductory_algebra_1e_ch4_7_10

Chapter 7: Cumulative Review for Chapters 1–7 *Additional answers can be found in the Answers to Exercises appendix. Perform the indicated operation(s) and simplify. 1) 2 9 5 6 1 3 5 18 2) 35 48 32 63 10 27 3) Solve 3 8 t 1 2 1 4 (4t 1) 3 4 t {2} 4) Solve A 1 2 h(b1 b2) for b2. b2 2A hb1 h 5) Solve 5 2 3 k 13. 12, q) 6) Graph y 1 4 x 2. 7) Write the equation of the line parallel to 5x 3y 7 containing the point (5, 7). Express the answer in slope-intercept form. y 5 3 x 4 3 8) Use any method to solve this system of equations. 4 2(1 3x) 7y 3x 5y 10y 9 3(2x 5) 2y 9) Write a system of equations, and solve. Tickets to a high school football game cost $6.00 for an adult and $2.00 for a student. The revenue from the sale of 465 tickets was $1410. Find the number of adult tickets and number of student tickets sold. adults: 120; students: 345 Simplify. The answer should not contain any negative exponents. 10) 2(3p4q)2 18p8q2 11) 28a8b4 40a3b9 7a11 10b5 12) Write 0.0000839 in scientifi c notation. 8.39 105 Multiply and simplify. 13) (4w 7)(2w 3) 8w2 2w 21 14) (3n 4)2 9n2 24n 16 15) (6z 5)(2z2 7z 3) 12z3 32z2 53z 15 16) Add (11v2 16v 4) (2v2 3v 9). 13v2 13v 5 Divide. 17) 16x3 57x 14 4x 7 18) 24m2 8m 4 8m 4x2 7x 2 Factor completely. 19) 6c2 15c 54 20) r2 25 prime 21) xy2 4y2 x 4 22) 1 4 b2 a1 2 bb a1 2 bb 23) 2h4 28h3 98h2 2h2(h 7)2 Solve. 24) 3t2 13t 12 0 25) 24n3 54n 3m 1 1 2m 3(2c 9)(c 2) (x 4)(y 1)(y 1) e 4 3 , 3 f e 0, 3 2 , 3 2 f 450 CHAPTER 7 Factoring Polynomials www.mhhe.com/messersmith


messersmith_power_introductory_algebra_1e_ch4_7_10
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