Solve the problem.Find the average rate of change. Use appropriate units.
Minutes Cellular Phone is Used
A. $0.40 per minute
B. $-2.40 per minute
C. $0.90 per minute
D. $-0.42 per minute
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 (±8, 0) and foci at (±3, 0)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
Find the product.(10x - 9y)2
A. 100x2 + 81y2 B. 10x2 + 81y2 C. 10x2 - 180xy + 81y2 D. 100x2 - 180xy + 81y2
Mathematics
Write the numeral as a numeral in base five.CMXXXII
A. 14012five B. 932five C. 12212five D. 1132five
Mathematics
Solve the equation.-28 = a - 25
A. 3 B. -3 C. 53 D. -53
Mathematics