Find an equation for the ellipse described.Foci at (±4, 0); x-intercepts are ±5
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: D
Mathematics
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Solve the problem.The surface area of a cylinder whose radius is r inches and height is 9 inches is given by 
square inches. Express the surface area in factored form.
A. 2?r(r + 9) B. 2(?r2 + 18?r) C. 2?r(r + 18) D. 2?(r2 + 18?)
Mathematics
Solve for the base. Round to the nearest cent.Part: $8.96 Rate of decrease: 12%
A. $10.18 B. $8.96 C. $110.18 D. $7.88
Mathematics
Find the slope and y-intercept of the line.-3x + 5y = 8
A. slope = 
; y-intercept = 
B. slope = 
; y-intercept = - 
C. slope = 3; y-intercept = 11
D. slope = 
; y-intercept = 
Mathematics
Determine whether the given expression is a polynomial. If it is, write it in standard form.0.3x6 - 9.8
A. Yes; 0.3x6 - 9.8 B. No
Mathematics