Solve the problem. Round to the nearest tenth of a percent unless otherwise noted. The price of a printer was reduced from $400 to $300. What was the percent decrease?
A. 30%
B. 75%
C. 25%
D. 33.3%
Answer: C
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There are various formulas that will generate Pythagorean triples. Use the specified formula and specified values to generate a Pythagorean triple.For positive integers r and s such that r > s, the following set of equations will generate a Pythagorean triple (a, b, c). a = r2 - s2, b = 2rs, c = r2 + s2.Use this method with the values r = 8 and s = 1 to generate a Pythagorean triple.
A. (14, 16, 18) B. (64, 15, 68) C. (63, 16, 65) D. (64, 18, 65)
Solve the problem.Find the side length of a square with the same perimeter as a equilateral triangle with side 4 cm.
A. 6 cm B. 5.33 cm C. 1 cm D. 3 cm
Find the indicated maxima or minima.Maximum of f(x,y) = xy,subject to x + y = 100
A. 0 when x = 100, y = 0 B. 2500 when x = 50, y = 50 C. 100 when x = 50, y = 50 D. 0 when x = 0, y = 100
Solve the problem.Suppose the consumption of electricity grows at 4.3% per year, compounded continuously. Find the number of years before the use of electricity has tripled. Round the answer to the nearest hundredth.
A. 69.77 yr B. 25.55 yr C. 2.55 yr D. 0.26 yr