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Concept explainers
In Exercises 31-36, sketch the graph of the given/unction, evaluate the given expressions, and then use technology to duplicate the graphs. Give the technology formula. [HINT: See Example 2.)
a.
b.
c.
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Chapter 1 Solutions
Finite Mathematics
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- (i) For a given constant a > 0, let an investor's preference be represented by the Gaussian utility function U(w)=1-e-aw² For what range of wealth level w will the investor be non-satiated and risk-averse? Explain your answer. (ii) Give an example of a utility function that exhibits DARA and verify it. (iii) Determine the class of utility functions with relative risk aversion coefficient R(w)= w², w> 0.arrow_forward3. Compute the profit corresponding to 12,000 units. 5. A rectangular box is to have a square base and a volume of 20 ft3. The material for the base costs $0.30 per ft2, the material for the sides cost $0.10 per ft2, and the material for the top costs $0.20 per ft2. Letting a denote the length of one side of the base, find a function in the variable x giving the cost of constructing the box. 6. Given the following graph f(x).arrow_forward8. On what intervals, each function continuous? (a) f(x) = 3x11 + 4x²+1 3x²+5x-1 (b) g(x) = x²-4 X, x < 1, QTs the function f(x) continuous at = 1? Use the definition of continuity to justifyarrow_forward
- review problem please help!arrow_forwardSara (a 23 year old college graduate) is starting her first career. She met with a financial planner and has determined that she wants $1,000,000 when she retires at the age of 63. She has found an annuity that pays 4.25%, compounded quarterly. What will she need to save each month, if Sara waits 20 years to start saving? N: P/Y: I%: C/Y: PMT: FV: End or Begin $4158.98 $4,115.26 $2645.83 $6,707.40arrow_forwardSara (a 23 year old college graduate) is starting her first career. She met with a financial planner and has determined that she wants $1,000,000 when she retires at the age of 63. She has found an annuity that pays 4.25%, compounded quarterly. What will she need to save each month, if a) Sara begins saving now? N: P/Y: I%: C/Y: PMT: FV: End or Begin $1,323.80 $1,376.59 $794.74 $1,000,000arrow_forward
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