Graph the function.y = 3 cos 
x
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Solve.Find the center, foci, and vertices of the ellipse 
+ 
= 1
A. center at (3, 1)
foci at (3 + 3
, 1), (3 - 3
, 1)
vertices at (-3, 1), (9, 1)
B. center at (3, 1)
foci at (- 3
, 1), (3
, 1)
vertices at (6, 1), (-6, 1)
C. center at (3, 1)
foci at (3 + 3
, 3), (3 - 3
, 3)
vertices at (6, 1), (-6, 1)
D. center at (1, 3)
foci at (1 + 3
, 3), (1 - 3
, 3)
vertices at (-3, 1), (9, 1)
Mathematics
Provide an appropriate response.Explain and correct the error in the following problem: 
4. 1 7
What will be an ideal response?
Mathematics
Solve the problem.If v = 5i + 5j, what is 
?
A. 0
B. 20
C. -20
D. 0
Mathematics
Plot the complex number.3 + 6i
A. 
B. 
C. 
D. 
Mathematics