Use the discriminant to determine the nature of the roots of x^2 + 2x + 5 = 0.

a.no real root
b.two distinct real roots
c.one distinct real root
d.three distinct real roots

Question

Use the discriminant to determine the nature of the roots of x^2 + 2x + 5 = 0.

a.no real root
b.two distinct real roots
c.one distinct real root
d.three distinct real roots

radar · Answer

D is less than zero, no real solutions

anonymous · Answer

thank you :)

radar · Answer

D is 2x2-(4x5)
4-20=-16     -16<0

anonymous · Answer

can you help me with my latest question ?please?

radar · Answer

What is the question?

anonymous · Answer

A soccer goalie kicks a ball. The ball leaves the goalie's foot with an initial upward velocity of 10 meters per second. If the ball is 1.5 meters off the ground when it leaves the goalie's foot, about how many seconds will it take for the ball to hit the ground?
a.2.18 seconds 
b.4.36 seconds 
c.-0.14 seconds 
d.10.682 seconds

radar · Answer

I see it now.  Sounds like a physics question.  I don't have a physics reference

anonymous · Answer

ok thank you