Verify the identity.
= cot y - cot x
What will be an ideal response?
= 
= 
- 
= 
- 
= cot y - cot x
Mathematics
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Provide an appropriate response.Use properties to graph the quadratic equation: y = 2x2 - 4
A. I B. II C. III D. IV
Mathematics
Find an equation for the ellipse described.Foci at (1, 4) and (-5, 4); vertex at (-8, 4)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
Solve the problem.The maximum distance d in kilometers that you can see from a height h in meters is given by the formula 
How far can you see from the top of a 
building? (Round to the nearest tenth of a kilometer.)
A. 797 km B. 72.2 km C. 20.6 km D. 38.6 km
Mathematics
Solve the equation and check your proposed solution.
= 20
A. -120 B. -26 C. -100 D. -114
Mathematics