Sketch the graph of the given equation over the interval [-2?, 2?].y = 
cos 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Find the requested sum of the arithmetic sequence.
+ 
+ 
+ 
+ . . . + 
A. 
B. 
C. 
D. 
Mathematics
Use the distributive property. Assume that variables represent nonnegative values.
(3 + 
)
A. 4
B. 3
- 7
C. 3
+ 7
D. 7
+ 3
Mathematics
Determine the x-intercept(s) of the quadratic function f(x) = x²-3x-18
Mathematics
Find an equation for the ellipse described.Foci at (-5, -2) and (1, -2); length of major axis is 10
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics