Find the probability.When a single card is drawn from an ordinary 52-card deck, find the probability of getting the 7 of diamonds.
A. 
B. 
C. 
D. 
Answer: D
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Find the average value of the function over the region.f(?, ?, ?) = ? cos ? over the solid lower ball ? ? 12, ?/2 ? ? ? ?
A. - 5184?
B. - 
C. 
D. 
Rotate the axes so that the new equation contains no xy-term. Discuss the new equation.24xy - 7y2 + 36 = 0
A. ? = 36.9°
- 
= 1
hyperbola
center at (0, 0)
transverse axis is the y'-axis
vertices at (0, ±3)
B. ? = 36.9°
- 
= 1
hyperbola
center at (0, 0)
transverse axis is the y'-axis
vertices at (0, ±2)
C. ? = 36.9°
- 
= 1
hyperbola
center at (0, 0)
transverse axis is the y'-axis
vertices at (0, ± 
)
D. ? = 53.1°
- 
= 1
hyperbola
center at (0, 0)
transverse axis is the y'-axis
vertices at (0, ±2)
Solve.Toni needs to cut a 4
- foot board into 6 equal pieces. How long should each piece be?
A. 27
ft
B. 1
ft
C. 
ft
D. 4 
ft
Use the point-slope form to write an equation of the line passing through the two given points. Write your final answer in standard form .(-3, -9), (0, 4)
A. -6x + 4y = -16 B. -13x - 3y = -12 C. 13x - 3y = -12 D. 6x - 4y = -16