Find the largest open interval where the function is changing as requested.Increasing f(x) = 
A. (0, ?)
B. (-?, 0)
C. (1, ?)
D. (-?, 1)
Answer: B
Mathematics
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Find an equation for the ellipse described.Foci at (1, 4) and (7, 4); length of major axis is 10
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
Solve the problem.For what numbers x, 0 ? x ? 2?, does sin x = -1?
A. ?
B. 
C. 
, 
D. none
Mathematics
Find the area under the normal curve.Find the percent of the area under a normal curve between the mean and 1.64 deviations from the mean.
A. 44.84% B. 44.95% C. 55.05% D. 94.95%
Mathematics
Use the graph to find the vertical asymptotes, if any, of the function.
A. none B. x = 0 C. y = -2, y = 2 D. x = 0, y = 0
Mathematics