Solve the problem.A painter leans a ladder against one wall of a house. The ladder is 23 ft long. The base of the ladder is 20 ft from the house. How high is the wall? Round approximations to the nearest tenth. 
20 ft
A. 5.7 ft
B. 64.5 ft
C. 11.4 ft
D. 21.5 ft
Answer: C
Mathematics
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Graph the rational function. Include the graphs and equations of the asymptotes.f(x) = 
A. asymptotes: x = -2, x = 2, y = 0
B. asymptotes: x = -2, x = 2, y = 0
C. asymptotes: x = -2, x = 2, y = 2
D. asymptotes: x = -2, x = 2, y = -2
Mathematics
Solve using the quadratic formula. Use a calculator to approximate the solution to three decimal places.
x2 + 
x - 
= 0
A. 0.75 B. -1.25, 0.75 C. -1 D. -0.781, 1.281
Mathematics
Factor out the greatest common factor. Simplify the factors, if possible.5m(3 - m) + 9n(3 - m)
A. m(5 + 9n)(3 - m) B. (5m - 9n)(3 - m) C. 5(m + n)(3 - m) D. (5m + 9n)(3 - m)
Mathematics
Answer the question.True or False: The graph of the equation x - 2y = 5 goes through (10, 4)
A. False B. True
Mathematics