Write the statement as a ratio in lowest terms.20 hours to 4 days
A. 5
B. 
C. 
D. 120
Answer: C
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Rotate the axes so that the new equation contains no xy-term. Discuss the new equation.x2 + 2xy + y2 - 8x + 8y = 0
A. ? = 36.9°
+ 
= 1
ellipse
center (0, 0)
major axis is x'-axis
vertices at (±2, 0)
B. ? = 36.9°
+ 
= 1
ellipse
center (0, 0)
major axis is x'-axis
vertices at (±2, 0)
C. ? = 45°
x'2 = -4
y'
parabola
vertex at (0, 0)
focus at (0, -
)
D. ? = 45°
y'2 = -4
x'
parabola
vertex at (0, 0)
focus at (-
, 0)
Write the partial fraction decomposition of the rational expression.
A. 
+ 
+ 
B. 
+ 
+ 
C. 
+ 
+ 
D. 
+ 
+ 
Identify the figure as a line, a ray, a line segment, or an angle. Then name the figure using the given points.
A. angle; ?GHI or ?IHG or ?H
B. ray; 
C. line segment; 
D. line; 
Solve the problem.A class has 25 students. On a test, 3 students earned a 90, 4 students earned an 80, 
earned a 70, 3 students earned a 60, and you earned a 75. How did your score relate to the average (mean) of the class. Explain.
A. The grade was exactly the same as the class average of 75. B. The grade was below the class average of 76.2. C. The grade was above the class average of 70.0. D. The grade was above the class average of 73.0.