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

Mathematics

You might also like to view...

Use integration by parts to establish a reduction formula for the integral.

A.  = - axn e-ax + na 
B.  = -  +  
C.  =   -  
D.  = -  +  

Mathematics

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

Mathematics

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

Mathematics

Simplify the expression. ?

What will be an ideal response?

Mathematics