Perform the indicated operation.
(Round to the nearest hundredths when necessary.)
A. 2.79
B. 0.23
C. 2.29
D. 0.28
Answer: C
Mathematics
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Solve the problem.Which of the following [A), B), C), or D)] can be a negative number?
A. the variance of a data set B. the range of a data set C. the standard deviation of a data set D. the interquartile range of a data set E. none of these can be negative numbers.
Mathematics
Write an equation for the ellipse.foci at (-2, 5), (-2, -1); major axis length of 10
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
Identify the solution set to the inequality by inspecting the graph.-x2 + 2x ? -5x + 10 
A. (-?, 2] ? [5, ?) B. (2, 5) ? (5, ?) C. [2, 5] D. (-?, -2) ? (5, ?)
Mathematics
Find the focus and directrix of the parabola.x = 3y2
A. F: 
; D: x = - 
B. F: 
; D: x = - 
C. F: 
; D: x = 
D. F: 
; D: y = - 
Mathematics