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Damm [24]
2 years ago
14

What is the value of the discriminant for the quadratic equation zero equals 2x^2+x-3

Mathematics
1 answer:
Liono4ka [1.6K]2 years ago
7 0

Discriminant for the quadratic equation  2x^2+x-3=0 is d=25

How to find the d Discriminant of the quadratic equation ?

We know that the standard quadratic equation

ax^2+bx+c=0

Discriminant of the equation is d=b^2-4ac

Equation given in the question is

2x^2+x-3=0

So we can find the values of a,b,c

a=2\\b=1\\c=-3

Substitute the values

d=1^2-4*2*(-3)\\d=1+24\\d=25

Learn more about the discriminant of the quadratic equation here:

brainly.com/question/28048709

#SPJ4

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\bf ~~~~~~~~~~~~\textit{middle point of 2 points }
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%  (c,d)
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\end{array}\qquad
%   coordinates of midpoint 
\left(\cfrac{ x_2 +  x_1}{2}\quad ,\quad \cfrac{ y_2 +  y_1}{2} \right)
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\left( \cfrac{-9+x}{2}~~,~~\cfrac{-1+y}{2} \right)=\stackrel{midpoint}{(8,14)}\implies 
\begin{cases}
\cfrac{-9+x}{2}=8\\\\
-9+x=16\\
\boxed{x=25}\\
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\cfrac{-1+y}{2} =14\\\\
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\bf -------------------------------\\\\
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&&x_1&&y_1&&x_2&&y_2\\
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%  (c,d)
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\end{array}\qquad
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\left( \cfrac{10+x}{2}~~,~~\cfrac{12+y}{2} \right)=\stackrel{midpoint}{(6,9)}\implies 
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3 0
3 years ago
Find GCF of -50m ^4 n ^7 and 40m ^2 n ^10
trapecia [35]
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and
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5 0
3 years ago
Ellie's Bakery is having a grand opening sale. All pastries are being discounted by 25%. Let x represent the regular price of an
Sindrei [870]

a) The expression to find the sale price of pastry =  0.75 x

b)  The regular price of the pastry bought by Kimberly = $2.70

Step-by-step explanation:

Step 1 :

Let x be the regular price of the pastry in the bakery

Percentage of discount = 25%

Amount of discount  = 0.25 x

The expression to find the sale price of pastry = x - 0.25 x = 0.75 x

Step 2 :

Sale price of the pastry bought by Kimberly = $2.03 = 0.75 x

<u>To find the regular price</u>

0.75x = 2.03

x = \frac{2.03}{0.75} = 2.70

Regular price of the pastry bought by Kimberly = $2.70

Step 3 :

Answer :

a) The expression to find the sale price of pastry =  0.75 x

b) The regular price of the pastry bought by Kimberly = $2.70

8 0
3 years ago
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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

7 0
3 years ago
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