Provide an appropriate response.Examine the discriminant and find the roots of the equation, rounding to the nearest hundredth if necessary: 12 + 4x - x2 = 0
A. x = -2, 6
B. x = 2.42, -0.42
C. x = 2 + 2.83i, 2 - 2.83i
D. x = 2, -6
Answer: A
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A. 
= - axn e-ax + na 
B. 
= - 
+ 
C. 
= 
- 
D. 
= - 
+ 
Solve the problem.A force of 
will stretch a rubber band 
. Assuming Hooke's law applies, how much work is done on the rubber band by a 
force?
A. 0.135 J B. 0.015 J C. 1350 J D. 0.045 J
Solve the problem.What polynomial expression represents, in appropriate units, the perimeter of this square? The area? 
A. Perimeter: 16t + 12; Area: 16t2 + 24t + 9 B. Perimeter: 16t + 3; Area: 8t2 + 24t + 6 C. Perimeter: 16t + 3; Area: 16t2 + 12t + 9 D. Perimeter: 16t + 12; Area: 16t2 + 9
Simplify the expression.
?
What will be an ideal response?