Perform the indicated operation.6.813 - 1.350
A. 5.463
B. 5.563
C. 5.663
D. 8.163
Answer: A
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Evaluate the expression.61
A. 
B. 6
C. 1
D. -6
Given a normal distribution with mean 120 and standard deviation 5, find the number of standard deviations the measurement is from the mean. Express the answer as a positive number.107
A. 3.2 B. 2.6 C. 2 D. 1.4
Find an equation for the line with the given properties.Parallel to the line x + 2y = 4; containing the point (0, 0)
A. y = 
B. y = - 
x
C. y = - 
x + 4
D. y = 
x
Beams of light parallel to the axis of the parabolic mirror shown in the figure strike the mirror and are reflected. Find the distance from the vertex to the point where the beams concentrate.
?
ft, 
ft
?
?
The focus is __________ in. from the vertex on the axis of the parabola.
Fill in the blank(s) with the appropriate word(s).