Perform the indicated operations and simplify.
?
A. 
B. 
C. 
D. 
E. 
Answer: D
Mathematics
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Find the standard-form equation of the ellipse centered at the origin and satisfying the given conditions.An ellipse with vertices (0, ±9) and foci at 
.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
Solve the system graphically.x + y = -95x - y = -45
A. (0, -9) B. (-9, 0) C. (-9, 5) D. (0, 5)
Mathematics
Use the product rule to simplify.
A. 2y15 B. -2y4 C. 8y4 D. 2y4
Mathematics
Multiply.
A. -11 B. 17 C. 22 D. -22 E. 11
Mathematics