In Exercises 1–4, solve the systems of equations.
1.
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Chapter 7 Solutions
EBK COLLEGE ALG.IN CONTEXT W/APPL.F/MAN
- Write 3/5 as a percentagearrow_forward16. Solve each of the following equations for x. (a) 42x+1 = 64 (b) 27-3815 (c) 92. 27² = 3-1 (d) log x + log(x - 21) = 2 (e) 3 = 14 (f) 2x+1 = 51-2xarrow_forward4.5 Use zero- through third-order Taylor series expansions to predict f(2.5) for f(x) = 25x³- 6x²+7x - 88 using a base point at x = 1. Compute the true percent relative error ε, for each approximation.arrow_forward
- 11. Find the composition fog and gof for the following functions. 2 (a) f(x) = 2x+5, g(x) = x² 2 (b) f(x) = x²+x, g(x) = √√x 1 (c) f(x) = -1/2) 9 9(x) = х = - Xarrow_forwardpractice problem please help!arrow_forward13. A restaurant will serve a banquet at a cost of $20 per person for the first 50 people and $15 for person for each additional person. (a) Find a function C giving the cost of the banquet depending on the number of people p attending. (b) How many people can attend the banquet for $2000?arrow_forward
- 4.3 Perform the same computation as in Prob. 4.2, but use the Maclaurin series expansion for sin x to estimate sin(л/6). sin x=x- 3x15 3! 5! 7! +arrow_forwardAlt Fn Ctrl 12. Find functions f and g such that h(x) = (fog)(x). (a) h(x) = (x² + 2)² x+1 (b) h(x) = 5 3arrow_forward15. Find the exact value. (a) log4 16 (b) log7 1 49 (c) logs 3/25arrow_forward
- Algebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:Cengage