Refer to the following normal curve, with mean ? and standard deviation ?.
The mean ? =
A. 12
B. 48
C. 54
D. 39
E. none of these
Answer: C
Mathematics
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Find the angle in degrees when given the trigonometric values. ? represents the unknown angle measure.sec ? = 8.45
A. 83.0° B. 83.00° C. 83.2° D. 83.20°
Mathematics
Determine whether the graph of the equation is symmetric with respect to the x-axis, the y-axis, and/or the origin.y = 
A. y-axis B. origin C. x-axis D. x-axis, y-axis, origin E. none
Mathematics
Write the number in standard form a + bi.
A. - 
+ 
i
B. - 
+ 
i
C. - 
- 
i
D. - 
- 
i
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Write the equation as f(x) = a(x - h)2 + k. Identify the vertex.f(x) = x2 + 6x - 4
A. f(x) = (x + 3)2 - 13; (-13, -3) B. f(x) = (x + 6)2 - 40; (-40, -6) C. f(x) = (x + 3)2 - 13; (-3, -13) D. f(x) = (x + 6)2 - 40; (-6, -40)
Mathematics