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Andrej [43]
3 years ago
5

Compute the value of the discriminant and give the number of real solutions of the quadratic equation. 4x^2-7x+2=0

Mathematics
1 answer:
Svetach [21]3 years ago
5 0

Answer:

Discriminant is 17 and it has 2 real roots.

Step-by-step explanation:

To find the number of real roots for a quadratic, we apply the discriminate. The discriminate is the inside portion of the square root from the quadratic formula.

• b^2-4ac>0 yields 2 real roots

• b^2-4ac=0 yields 1 real root

• [tx]b^2-4ac<0[/tex] yields no real roots

4x^2-7x+2=0 where a=4, b=-7, and c=2

b^2-4ac=(-7)^2-4(4)(2)=49-32=17.

It has 2 real roots


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Step-by-step explanation:


8 0
3 years ago
11. This picture shows a table in the shape of a regular hexagon.
disa [49]

Answer:

Sum of interior angles = 720°

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Step-by-step explanation:

Sum of interior angles = 180°(n-2)

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3 0
3 years ago
25% $760 what's the answer
Semenov [28]
The answer would be $190
5 0
3 years ago
So who's going to do this aka the queen / King Master ​
attashe74 [19]
590 is your answer mark me brainist please
5 0
3 years ago
Please help!!!!!!!!!!!
Assoli18 [71]

<u>Let's take this problem step by step:</u>

<u>To find the ordered pair of the system:</u>

⇒ must set both equations equal to each other

    ⇒ and solve for 'x'

<u>Let's solve:</u>

 x^2-2x+3=-2x+19\\x^2-2x+2x+3-19=0\\x^2-16=0\\(x+4)(x-4)=0

<u>Let's find the x-values:</u>

   (x-4)=0\\x=4\\\\(x+4)=0\\x=-4

<u>Let's find f(x)'s value for each 'x':</u>

 x=4\\f(4)=-2(4)+19=-8+19=11\\\\x=-4\\f(-4)=-2(-4)+19=8+19=27

<u>Answer: (4, 11), (-4,27)</u>

Hope that helps!

#LearnwithBrainly

3 0
1 year ago
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