Find the center, foci, and vertices of the ellipse.
+ 
= 1
A. center at (0, 0)
foci at (- 2
, 0) and (2
, 0)
vertices at (-7, 0), (7, 0)
B. center at (0, 0)
foci at (0, -5) and (0, 5)
vertices at (0, -25), (0, 25)
C. center at (0, 0)
foci at (-7, 0) and (7, 0)
vertices at (-49, 0), (49, 0)
D. center at (0, 0)
foci at (0, - 2
) and (0, 2
)
vertices at (0, -7), (0, 7)
Answer: A
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A. 
+ 18 sin-1 
+ C
B. sin-1 
+ C
C. 
- 18 ln 
+ C
D. 
+ 18 sin-1 
+ C
Use the Half-angle Formulas to find the exact value of the trigonometric function. cos 22.5°
A. 
B. - 
C. - 
D. 
Use the horizontal line test to determine whether the function is one-to-one.
A. Yes B. No
Solve the problem.Find the area of the rectangle by multiplying the length and the width of the large rectangle using the FOIL method.
A. 4x2 + 7x + 56 B. 4x2 +39x C. 4x2 + 32x +56 D. 4x2 + 39x + 56