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Pavlova-9 [17]
3 years ago
7

If alpha beta are the roots of the equation

Mathematics
1 answer:
Vikki [24]3 years ago
8 0

Answer:

Step-by-step explanation:

Hello, I believe that we can consider a different from 0.

By definition of the roots we can write.

ax^2+bx+c=a(x-\alpha)(x-\beta)=a(x^2-(\alpha + \beta)x+\alpha \cdot \beta)\\\\\text{So we can say that:}\\\\\alpha + \beta = \dfrac{-b}{a}\\\\\alpha \cdot \beta=\dfrac{c}{a}\\\\\text{So the expected quadratic equation is}\\\\(x+\dfrac{b}{a})(x-\dfrac{c}{a})=0\\\\ \Large \boxed{\sf \bf \ (ax+b)(ax-c)=0 \ }

Thank you

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Assoli18 [71]

Answer:

A is correct

Step-by-step explanation:

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3 years ago
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Miguel is selling tickets to a barbecue. Adult tickets cost $8.00 and children's tickets cost $5.00. He sells seven more childre
weqwewe [10]

Answer:

Adult tickets = 18

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Step-by-step explanation:

We can write 2 equations and solve:

let number of adult tickets be a and number of children tickets be c

Adult ticket cost is 8 and children cost is 5 and total money is 269, thus:

1. 8a + 5c = 269

Also, he sells seven more children's tickets than adult tickets, thus:

2. c - 7 = a

Now substituting 2 into 1, we can solve for c:

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8(c-7) + 5c = 269

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13c = 325

c = 325/13 = 25

Now using equation 2, we can solve for a:

c - 7 = a

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So, 18 adult tickets and 25 children's ticket

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3 years ago
A parobola has the equation y=x²+2x-3
mojhsa [17]

Answer:

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Step-by-step explanation:

See attached image.

5 0
2 years ago
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jeka57 [31]

Let p be the amount of sales (in dollars) of phones.

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1 year ago
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