Factor by grouping.r2 + 2ra + 4r + 8a
A. (r + 2)(r + 4a)
B. (r + 2a)(r + 4)
C. (r + 2ra )(r + 4)
D. (r2 + 2a)(r + 4)
Answer: B
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Let x be a number. Translate the English phrase or sentence into a mathematical expression. 113 less than a number
A. 113 - x B. x - 113 C. x + 113 D. 113 ÷ x
Provide an appropriate response.Rank the numbers in order from smallest to largest.2.15 × 103, 7.76 × 106, 8.02 × 10-3, 6.65 × 103, 2.61 × 10-6
A. 2.61 × 10-6 < 8.02 × 10-3 < 2.15 × 103 < 6.65 × 103 < 7.76 × 106 B. 8.02 × 10-3 < 2.61 × 10-6 < 2.15 × 103 < 6.65 × 103 < 7.76 × 106 C. 2.61 × 10-6 < 2.15 × 103 < 6.65 × 103 < 7.76 × 106 < 8.02 × 10-3 D. 7.76 × 106 < 6.65 × 103 < 2.15 × 103 < 8.02 × 10-3 < 2.61 × 10-6
Solve the formula for the specified variable.F = 
for G
A. G = 
B. G = Fd2
C. G = 
D. G = 
Find the slope-intercept form of the linear function f whose graph passes through the given pair of points. (-7, -3) and (-2, -7)
A. f(x) = 
x + 
B. f(x) = - 
x - 
C. f(x) = 
x - 
D. f(x) = - 
(x + 7) - 3