Find an equation for the ellipse described.Focus at (0, -3); vertices at (0, -6) and (0, 6)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: D
Mathematics
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Given the matrices A and B, find the matrix product AB.A = 
, B =
. Find AB.
A. 
B. 
C. 
D. 
Mathematics
Choose the inequality that best matches the shaded graph.
A. y ? -2x - 2 B. y ? 2x + 2 C. y ? -2x - 2 D. y ? 2x + 2
Mathematics
Use a calculator to solve the equation on the interval 0 ? x < 2?. Round the answer to one decimal place if necessary.x + 3 sin x = 1
Fill in the blank(s) with the appropriate word(s).
Mathematics
Simplify.
A. 
B. 
C. 
D. 
Mathematics