Refer to the graph to answer the question.Find y when x = 3.
A. 2
B. -2
C. -4
D. 4
Answer: B
Mathematics
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Provide an appropriate response.The standard normal probability density function is defined by f(x) = 
e- x2/2. (a) Use the fact that 
dx = 1 to show that 
dx =
.(b) Use the result in part (a) to show that the standard normal probability density function has variance 1.
What will be an ideal response?
Mathematics
Factor completely.49x2 - 25
A. (7x + 5)2 B. (7x - 5)2 C. (49x + 1)(x - 25) D. (7x + 5)(7x - 5)
Mathematics
Given the radius, r, of a circle, find the diameter; or given the diameter, d, of a circle, find the radius.r = 43 yd
A. d = 135.02 yd B. d = 5805.86 yd C. d = 21.5 yd D. d = 86 yd
Mathematics
Determine from the graph whether the function has any absolute extreme values on the interval [a, b].
A.
| Absolute minimum only. |
B. Absolute minimum and absolute maximum.
C. Absolute maximum only.
D. No absolute extrema.
Mathematics