Find an equation for the hyperbola described.Vertices at (±3, 0); foci at (±11, 0)
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Answer: B
Mathematics
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The scalar function div(grad f) = ? ? ? f (also written ?2f) is called the Lapalacian, and the function f satisfying ?2f = 0 is said to be harmonic. ?2f = fxx + fyy + fzz. Find ?2f for the following function and decide if it is harmonic.f(x, y, z) = 4x2 - y2 - 3z2
A. harmonic B. not harmonic
Mathematics
Provide an appropriate response.Write the square root of 81 using a fractional exponent.
A. 9
B. 91/2
C. 
D. 811/2
Mathematics
If ?ABC ? ?XYZ then ?XYZ ? ?ABC by _______________.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Find the magnitude of the vector.
?
What will be an ideal response?
Mathematics