Factor the sum or difference of two cubes.125 - x3
A. (5 - x)(25 + x2)
B. (5 + x)(25 - x2)
C. (5 + x)(25 - 5x + x2)
D. (5 - x)(25 + 5x + x2)
Answer: D
Mathematics
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Use the range rule of thumb to approximate the standard deviation.The race speeds for the top eight cars in a 200-mile race are listed below. Round results to the nearest tenth.188.5 188.6 189.2 187.2 175.6 178.5 176.8 185.4
A. 3.4 B. 1.1 C. 6.8 D. 7.5
Mathematics
Determine whether the relation is a function.{(-2, -4), (1, -8), (6, -3), (9, 5), (12, 2)}
A. Not a function B. Function
Mathematics
Write the improper fraction as a mixed or whole number.
A. 29
B. 29
C. 
D. 2
Mathematics
Solve each system of equations using matrices (row operations). If the system has no solution, say that it is inconsistent.
A. x = -4, y = -5 B. x = -4, y = 5 C. x = 5, y = -4 D. Inconsistent
Mathematics