Question

15) Use the compound interest formulas A-P and 15) Find the accumulated value of an investment of $3000 at 8% compounded annually for 9 years. A) $5552.79 B) $5160,00 C)$5997.01 D) $4920.00 Rewrite the equation in terms of base e. Express the answer in terms of a natural logarithm, and then round to three decimal places. 16) y - 2.2(0.9) 16) A)y=220.9% y=222718-0.105x B) y=22eXIn09 y=2.2 -0.105x C)y-09ex In22 y-0.90788 D) y-In 22)ex In 69 y-0788e-0.105 Graph the function 17) Use the graph of f(x) = log x to obtain the graph of g(x)=5-logx 17) 18) Use properties of logarithms to condense the logarithmic expression. Write the expression as a single logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions. 18) 2.08 x +loggy A) logg x Clog: Nxy D) log yax Solve the exponential equation. Use a calculator to obtain a decimal approximation, correct to two decimal places, for the solution 19) e2-3-4 =1402 A) 3.07 B) 5.12 1.57 D) 3.62 Graph the function. 20) Use the graph of f(x) = log x to obtain the graph of g(x) = log (x-1). 19) 20) +

Answer 1

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sol 15 1x9 A = P (1+r)ht A = 3000 (1t & A = $5997.01 1x100 16 Y= 2.2 212 (0.9) know that y = 2.2 y = (een (6.954) elnx 7 2.2 (ex An(0-9) s eln(0.93€ - (0.9) 2.2 -0.105x e 7 f(x) = logx g(x) = 5-Logx 9150) 5 fror > X=1 2-) option (A) (18 – log x + cory log x + logy - Log, yux option (1) 19 e 2x-3 – 4 = 1402 e 22-3 = 1406 2x-3 = ln 1406 2X-3 = 7, 248 x = 5.12 option (B) g(x) = log (x-1) option (A) x=1 x=2