Find the solution set for each inequality. Graph the solution set on a number line and write it in interval notation.|x| - 9 ? -6
A. (-?, -15]
B. [-3, 3]
C. (-?, -3] ? [3, ?)
D. (-?, 3]
Answer: B
Mathematics
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Find the standard-form equation of the ellipse centered at the origin and satisfying the given conditions.An ellipse having a focus at (0, -2
) and directrix y = - 
.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
Find the indicated derivative.Find y(4) if y = 5 sin x.
A. y(4) = - 5 sin x B. y(4) = 5 cos x C. y(4) = - 5 cos x D. y(4) = 5 sin x
Mathematics
Graph the function. Describe its position relative to the graph of the indicated basic function.f(x) = 2x - 2; relative to f(x) = 2x
A. Moved right 2 unit(s)
B. Moved down 2 unit(s)
C. Moved up 2 unit(s)
D. Moved left 2 unit(s)
Mathematics
Use half-angle identities to find the exact value of the expression.sin 22.5°
A. - 
B. 
C. 
D. - 
Mathematics