Find a symbolic representation for f-1(x).f(x) = x3 + 3
A. f-1(x) = 
B. Not a one-to-one function
C. f-1(x) = 
D. f-1(x) = 
- 3
Answer: A
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When money is spent on goods and services, those that receive the money also spend some of it. The people receiving some of the twice-spent money will spend some of that, and so on. Economists call this chain reaction the multiplier effect. In a hypothetical isolated community, the local government begins the process by spending D dollars. Suppose that each recipient of spent money spends 100c% and saves 100s% of the money that he or she receives. The values c and s are called the marginal propensity to consume and the marginal propensity to save and, of course, c+s=1. The number k = 1/s is called the multiplier. What is the multiplier if the marginal propensity to consume is 90%?
Select the correct answer. a. 4 b. 3 c. 6 d. 7 e. 10
Solve the problem.If cos A = 
and 
, with A in quadrant I and B in 
, then find sin(A - B).
A. 
B. 
C. 
D. 
Round the decimal to the given place value.1.3594 to the nearest thousandth
A. 1.36 B. 1.360 C. 1.358 D. 1.359
Write the phrase as an algebraic expression. Let x represent the unknown number.Five more than a number
A. 
B. x - 5
C. x + 5
D. 5x