Find the standard deviation. Round to the nearest tenth.88, 53, 47, 35, 49, 79, 42, 60, 26
A. 18.8
B. 6.7
C. 21.3
D. 19.9
Answer: D
Mathematics
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Find the largest open interval where the function is changing as requested.Decreasing f(x) = x3 - 4x
A. 
B. 
C. 
D. 
Mathematics
Factor completely.x3 - 4x
A. (x2 - 2)(x + 2x) B. x(x - 2)(x + 2) C. x(x + 2)2 D. x(x - 2)2
Mathematics
Write an equation in slope-intercept form for the line shown.
A. y = 
x - 3
B. y = 
x + 3
C. y = 3x - 3
D. y = 3x + 3
Mathematics
Graph the hyperbola.16y2 - 25x2 = 400
A. 
B. 
C. 
D. 
Mathematics