SD( X )
The random variable X has the probability density function
over [0, ?).
Compute the following quantities.
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Mathematics
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Write the numbers in the order indicated.3.1750, 3.5235, and 3.9055 in descending order
A. 3.5235, 3.1750, 3.9055 B. 3.9055, 3.5235, 3.1750 C. 3.9055, 3.1750, 3.5235 D. 3.1750, 3.5235, 3.9055
Mathematics
Graph the polar equation.r = 
A. 
B. 
C. 
D. 
Mathematics
Find the standard equation of the parabola with the given focus and directrix.Focus: (0, -5); directrix: y = -3
A. y2 = -4(x + 4) B. x2 = 4(y + 4) C. y2 = 4(x + 4) D. x2 = -4(y + 4)
Mathematics
Solve the problem.A long-distance runner runs 2 miles south and then 4 miles east. How far is the runner from the starting point? Round to nearest tenth. 
A. 1.1 mi B. 1.5 mi C. 2.5 mi D. 4.5 mi
Mathematics