Solve the inequality. Give the solution set in both interval and graph forms.-6y - 3 > -7y - 15
A. (-18, ?)
B. (-12, ?)
C. (-?, -12)
D. (-?, -18)
Answer: B
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Find the weighted mean. Round to the nearest tenth.
A. 231.3 B. 83.8 C. 261.7 D. 292.5
A large number of female llama were studied. It was found that this species of llama has a mean gestation period of 350 days with a standard deviation of 11 days. (Gestation period is defined as the time from conception to birth.) Use this to information to solve the problem.
What percent of llamas have a gestation periods between 317 and 383 inches?
A. 68% B. 99.7% C. 49.85% D. 95%
Find the volume of the solid. Use 3.14 for ?. Round to the nearest hundredth, if necessary.
A. 414.48 cm3 B. 2486.88 cm3 C. 828.96 cm3 D. 4973.76 cm3
Rotate the axes so that the new equation contains no xy-term. Discuss the new equation.x2 + xy + y2 - 3y - 6 = 0
A. ? = 45°
+ 
= 1
ellipse
center at 
major axis is y'-axis
vertices at 
and 
B. ? = 45°
- 
= 1
hyperbola
center at (0, 0)
transverse axis is the x'-axis
vertices at (±
, 0)
C. ? = 45°
+ 
= 1
ellipse
center at (0, 0)
major axis is y'-axis
vertices at (0, ±2)
D. ? = 45°
y'2 = -18x'
parabola
vertex at (0, 0)
focus at 