Find an equation for the ellipse described. Graph the equation.Foci at (-2, 6) and (-2, 0); length of major axis is 10
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: B
Mathematics
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Solve the problem.The voltage V across a semiconductor in a computer is given by V = aI + bI2, where I is the current (in amperes). If a 9-volt battery is connected across the semiconductor, find the current if a = 6 and b = 3.
A. I = 3 amperes B. I = 1 ampere C. I = -3 amperes D. Not enough information
Mathematics
Solve the problem.Enrollment in a business seminar increased from 62 people to 74 people. What was the percent of increase? Round to the nearest tenth of a percent.
A. 19.4% B. 80.6% C. 83.8% D. 16.2%
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Identify the intersection of the plane with the solid.Cylinder
A. Circle or oval
B. Semicircle
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Find the exact value of the expression.sin-1 (0.5)
A. 
B. 
C. 
D. 
Mathematics