150 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with mean ? = 65 and standard deviation ? = 10.Assuming there were no outliers, the lowest score on the exam was around
A. 65.
B. 35.
C. 0.
D. 10.
E. none of these
Answer: B
Mathematics
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Determine the symmetries of the curve.r = 4 - 4 sin ?
A. No symmetry B. x-axis only C. y-axis only D. Origin only
Mathematics
Perform the indicated operations and simplify the result. Leave the answer in factored form.
+ 
- 
A. 
B. 
C. 
D. 
Mathematics
Find an equation for the ellipse.Center (0, 0); major axis vertical with length 18; length of minor axis is 10
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
Write an equation of the line passing through the given points.(-2, -28) and (1, -1)
A. y = 
x - 
B. y = 9x - 10
C. y = - 
x - 
D. y = -9x - 46
Mathematics