Find the x-value of all points where the function has relative extrema. Find the value(s) of any relative extrema.f(x) = x2/5 - 1
A. No relative extrema.
B. Relative minimum of -1 at 0.
C. Relative minimum of -2 at 0.
D. Relative maximum of 2 at 10.
Answer: B
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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
Find the result that a calculator will give for the stated problem. Write your answer using the usual scientific notation.(1.7E13)?(3E-7)
A. -5.1 × 106 B. 5.1 × 107 C. 5.1 × 10-6 D. 5.1 × 106
Without using a calculator, determine the system of inequalities needed for the calculator-generated graph.
A. x2 + y2 ? 16 x ? 0 B. x2 + y2 ? 16 x ? 0 C. x2 + y2 ? 16 x ? 0 D. x2 + y2 ? 16 y ? 0
Rewrite the trigonometric expression as an algebraic expression involving the variable u. Assume that 
and that the value of the "inner" inverse trigonometric expression represents an angle ? such that 
cos (cot-1 u)
A. 
B. 
C. 
D. 