Solve and check the equation. Begin your work by rewriting the equation without fractions.
- x =
- 
A.
B.
C.
D.
Answer: D
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Solve.How long will it take for the population of a certain country to double if its annual growth rate is 6.4%? Round to the nearest year. Use the exponential growth model P(t) = P0ekt.
A. 5 yr B. 1 yr C. 11 yr D. 31 yr
Simplify the complex rational expression using Method I or Method II.
A.
B.
C.
D.
Simplify the expression. First use the distributive property to remove any parentheses.-6(z - 9)
A. -6z + 54 B. 6z + 54 C. -6z - 54 D. -6z + 9
Solve the problem.The function w(x) = 5x - 3 describes a company's monthly costs in wages and p(x) = 2x - 9 describes the cost of production, where x represents the number of units produced. Find the function c(x) that describes the total cost of producing x units.
A. c(x) = 3x - 12 B. c(x) = 7x + 6 C. c(x) = 3x + 6 D. c(x) = 7x - 12