Find the standard-form equation of the ellipse centered at the origin and satisfying the given conditions.An ellipse with length of major axis 12 and y-intercepts 
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: D
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Use a formula to write an equation for each problem, then solve it.The foundation of a house has a rectangular shape. The width is 24 feet and the length is 49 feet. Find the area.
A. area = 2977 sq ft B. area = 1176 sq ft C. area = 146 sq ft D. area = 73 sq ft
Evaluate f(x) at the given value of x.f(x) = 4x - 4; x = -3
A. -16 B. -14 C. 15 D. 16
Solve the problem. Assume that the minimum payment on a credit card is the greater of $27 or 3% of the unpaid balance.Find the minimum payment on an unpaid balance of $769.52.
A. $230.86 B. $27.00 C. $23.09 D. $28.09
Use the graph to find the intervals on which it is increasing, decreasing, or constant.
A. Increasing on 
and 
; decreasing on 
B. Decreasing on 
and 
; increasing on 
C. Increasing on (-?, ?)
D. Decreasing on 
; increasing on 