Divide. Simplify if possible.
÷ 
A. 
B. 1
C. 
D. 
Answer: C
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Find the requested partial derivative.(?w/?x)y,z if 
A. 3(x2 + 10xyz) B. 3(x2 + 5yz) C. 3(x2 + 5xyz) D. 3(x2 + 10yz)
Solve the problem.An arch for a bridge over a highway is in the form of a semiellipse. The top of the arch is 35 meters above ground. The main span is 69.71 meters wide. Write an equation for the ellipse in which the x-axis coincides with the ground and the y-axis passes through the center of the arch.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Find the eigenvalues and the corresponding eigenvectors 
What will be an ideal response?
Use the given table for y = ax2 + bx + c to solve ax2 + bx + c < 0 or ax2 + bx + c > 0, as indicated.y = -x2 + 7x - 11.25; ax2 + bx + c < 0
A. x < 2.5 or x > 4.5 B. -4.5 < x < -2.5 C. x < -4.5 or x > -2.5 D. 2.5 < x < 4.5