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What is the standard equation for calculating the future worth (F) when given the annual rate of return (I) and the present rate (P)?

(A) $latex F=P(1+i)^{n-1}$

(B) $latex F=P(1+i)^n$

(C) $latex F=P(1-i)^n$

(D) $latex F=P(1+n)^I$

The Correct Answer

What is the thermal efficiency for a Carnot engine that operates between 100F and 400K?

(A) 75% (B) 77.5% (C) 7.8% (D) 22.3%

Correct Answer: D

Find the slope of the line defined by: $latex y=2x^5 + 3x^4 + 2x^2 + 3x + 1$

(A)$latex m = 2x^6 + 3x^4 + 2x^3 + 3$ (B) $latex m = 10x + 12x^2 + 4x^4 + 3$ (C) $latex m = 10x^5 + 12x^4 + 4x^2 + 3$ (D) $latex m = 10x^4 + 12x^3 + 4x + 3$

Correct Answer: D

You must choose between four pieces of comparable equipment based on the costs and salvage values given below. All four pieces have a life of 8 years.

The discount rate is 12%. Ignore taxes. The two most preferable projects and the approximate difference between their present worth values based on least cost are:

(A) A and C, $170 (B) B and D, $170 (C) A and C, $234 (D) B and D, $234

Correct Answer: B

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