Convert the equation to the standard form for an ellipse by completing the square.25x2 + 16y2 - 50x + 64y - 311 = 0
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: A
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Give the measure of the missing angle using the similar triangles below.?E
?ABC ~ ?DEF, 
= 25 cm, ?B = 113°
A. 10° B. 57° C. 25 cm D. 113°
Solve the problem.In flying the 77 miles from Champaign to Peoria, a student pilot sets a heading that is 10° off course and maintains an average speed of 96 miles per hour. After 15 minutes, the instructor notices the course error and tells the student to correct his heading. Through what angle will the plane move to correct the heading and how many miles away is Peoria when the plane turns?
A. 165.5°; 68.45 mi B. 165.5°; 53.53 mi C. 14.5°; 68.45 mi D. 14.5°; 53.53 mi
Add or subtract as indicated.3i + (-4 - i)
A. 4 - 4i B. 4 - 2i C. -4 + 4i D. -4 + 2i
Find the y-intercept of the line determined by the equation. -7x + 5y =3
A) 
B) 
C) 
D) 
E) 