Find an equation of the ellipse.An ellipse with center at origin, length of major axis 8 and y-intercepts 
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: D
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Solve the problem by setting up and solving a system of two linear equations in two variables.Chip downloaded 18 songs for his MP3 player for a total cost of $19.20 The songs from Muchmore Music cost $1.00 each, and the songs from Itunes cost $1.20 each. How many songs did Chip download from each service?
A. 12 songs from Muchmore. 6 songs from Itunes. B. 13 songs from Muchmore. 5 songs from Itunes. C. 10 songs from Muchmore. 8 songs from Itunes. D. 14 songs from Muchmore. 4 songs from Itunes. E. 11 songs from Muchmore. 7 songs from Itunes.
Solve the right triangle. If two sides are given, give angles in degrees and minutes.
a = 10.9 cm, b = 21.7 cmRound the missing side length to one decimal place.
A. A = 30°9'; B = 59°51'; c = 22.6 cm B. A = 30°9'; B = 59°51'; c = 24.3 cm C. A = 26°40'; B = 63°20'; c = 25.8 cm D. A = 26°40'; B = 63°20'; c = 24.3 cm
Write the exponential expression as a radical.9x7/5
A. 9
B. 
C. 9
D. 
Evaluate the expression using the properties of real numbers.- 
? 
? 3
A. - 1
B. - 
C. 
D. - 