Identify the conic by writing the equation in standard form.
A. 
; hyperbola
B. 
; hyperbola
C. 
; ellipse
D. 
; hyperbola
E. 
; ellipse
Answer: B
Mathematics
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Evaluate the double integral over the given region.
R: 4 ? x ? 9, 6 ? y ? 9
A. 
B. 
C. 
D. 975
Mathematics
Solve the problem.Amy can clean the house in 6 hours. When she works together with Tom, the job takes 4 hours. How long would it take Tom, working by himself, to clean the house?
A. 12
hr
B. 2 hr
C. 13hr
D. 12 hr
Mathematics
Solve the initial value problem for y as a function of x.(x2 + 16)
= 1, y(4) = 0
A. y = 
tan-1 
- 
B. y = 
tan-1 
C. y = 
- 1
D. y = 
sin-1 
- 
Mathematics
Find a quadratic function that best fits the data. Give answers to the nearest hundredth.
A. y = 0.21 - 1.28x + 6.44 B. y = 0.20x2 + 0.33x + 3.52 C. y = -0.13x2 - 0.67x + 6.86 D. y = 0.20x2 - 0.33x + 3.52
Mathematics