QuickHelper

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Teaching Since: May 2017
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    Phoniex
    Jul-2007 - Jun-2012

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    ChevronTexaco Corporation
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Category > Engineering Posted 26 Jul 2017 My Price 6.00

How many real roots does a quadratic equation

Help with algebra

How many real roots does a quadratic equation have if the discriminant is -3?

 

0

 

1

 

2

 

-3

Find the discriminant of the equation



1.5m2 + m = -3.5

 

-4.25

 

0

 

22

 

-20

What is the next step to solving the following equation by using the quadratic formula?



2n2 - 7n - 3 = 0

 

 

 

Description: n equals fraction numerator 7 plus-or-minus square root of 49 minus 24 end root over denominator 4 end fraction

 

Description: n equals fraction numerator 7 plus-or-minus square root of 49 plus 24 end root over denominator 4 end fraction

 

Description: n equals fraction numerator 7 plus-or-minus 7 plus square root of 24 over denominator 4 end fraction

 

Description: n equals fraction numerator 7 plus-or-minus square root of negative 49 plus 24 end root over denominator 4 end fraction

Which statement best describes why there is no real solution to the quadratic equation y = x2 - 6x + 13?

 

The value of (-6)2 - 4 • 1 • 13 is a perfect square.

 

The value of (-6)2 - 4 • 1 • 13 is equal to zero.

 

The value of (-6)2 - 4 • 1 • 13 is negative.

 

The value of (-6)2 - 4 • 1 • 13 is positive.

 

 

Answers

QuickHelper
(10)
Status NEW Posted 26 Jul 2017 02:07 PM My Price 6.00

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