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elena-s [515]
3 years ago
10

Quincy uses the quadratic formula to solve for the values of x in a quadratic equation. he finds the solution, in simplest radic

al form, to be x = . which best describes how many real number solutions the equation has? zero, because the discriminant is negative. zero, because the discriminant is not a perfect square. one, because the negative and the minus cancel each other out. two, because of the ± symbol.
Mathematics
2 answers:
atroni [7]3 years ago
7 0
The answer is zero because the the discriminant is negative
pychu [463]3 years ago
6 0

A quadratic equation in the form of

 a x² + b x + c=0, has

Discriminant = D= b²- 4 ac

x = \frac{-b \pm \sqrt{D}}{2a}

Now coming to roots of a quadratic equation

1. D≥0, both the roots are real i.e both of them may be rational or both of them may be rational.

2. D=0, both the roots are real and equal.

3. D< 0, both the roots are imaginary.

So, out of following options given,

Option A, is not true,

zero, because the discriminant is negative.(It is a true statement if you are talking about real roots but if we consider imaginary roots also then this statement becomes false.) .In the question it is given that  that roots are in radical form that's why this option is incorrect.

. Option B is not true because if Discriminant is not a perfect square then also the quadratic function has two real either rational or irrational roots.

Third option is completely false , it is incorrect statement.[one, because the negative and the minus cancel each other]

Fourth option is true because , in the answer it has been written that the roots are in simplest radical form , The value of D should always be greater than zero,then we look at ± symbol .Then there are two possible real roots.

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padilas [110]

Answer:

Step-by-step explanation:

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6 0
3 years ago
Need help with number 8 please
DiKsa [7]
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Answer is D
8 0
3 years ago
What is −58÷910 ?<br><br> −2536<br><br> −916<br><br> −3580<br><br> −136
ziro4ka [17]
Im not sure the question. negative 58 divided by 910 is -0.0637, but that isnt an answer choice.
3 0
2 years ago
Read 2 more answers
(-7x + 6) - (-2x + 9x - 2)
elena-s [515]

Answer:

-14x+4

Step-by-step explanation:

So the first set of paranthese don't really matter so you can rewrite it to this

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Then  infront of the ( there is a - which means a -1. Now just do the disbutive property.

-7x+6+2x-9x+2

Now add like terms and you get your finial answer!

-14x+4

3 0
3 years ago
Need help again ...these questions are hard
kherson [118]
The answer is
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(1, 3)
6 0
3 years ago
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