Find the product.(10y2 - 7)(10y2 + 7)
A. 100y4 - 49
B. 100y4 - 140y2 + 140
C. 100y2 + 49
D. 10y2 - 49
Answer: A
Mathematics
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Give a geometric description of the set of points whose coordinates satisfy the given conditions. x2 + y2 + z2 > 9
A. All points outside the cylinder with radius 3 B. All points on the surface of the cylinder with radius 3 C. All points outside the sphere of radius 3 D. All points in space
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Provide an appropriate response.Simplify the power of: i2
A. 1 B. i C. -i D. -1
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Find an equation of the line that has the given slope and contains the given point.m = - 
, (2, 2)
A. y = 
x - 
B. y = - 
x + 
C. y = - 
x - 
D. y = - 
x - 
Mathematics
Find an equation for the ellipse described.Foci at (0, -4) and (0, 4); length of the major axis is 10
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics