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masya89 [10]
4 years ago
15

Write the quadratic equation whose roots are one and three and who’s leading coefficient is three

Mathematics
1 answer:
FromTheMoon [43]4 years ago
5 0

\bf \begin{cases} x = 1\implies &x - 1 = 0\\ x = 3\implies &x - 3=0 \end{cases}\qquad \implies (x-1)(x-3) = \stackrel{y}{0} \\\\\\ \stackrel{F~O~I~L}{x^2-4x+3}=0\implies 3(x^2-4x+3)=0\implies 3x^2-12x+9=y

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Mary brother is five years younger than 3 times her age. the sum of their ages 39. how old is mary
butalik [34]
Let's say Mary's brother's age is x and Mary's age is y
(1) x = 3y - 5
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Now if we substitute equation (1) into equation (2) we get:
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Therefor Mary is 11 years old
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The following scatter plot shows the data for NCAA quarterbacks comparing their attempted passes to completed passes.
Elanso [62]

The line of the best fit is shown in the picture which is approximate near the dots.

<h3>What is the line of best fit?</h3>

A mathematical notion called the line of the best fit connects points spread throughout a graph. It's a type of linear regression that uses scatter data to figure out the best way to define the dots' relationship.

The slope and y-intercept can be found using the formula below:

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We have a given a scatter plot shows the data for NCAA quarterbacks comparing their attempted passes to completed passes.

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Learn more about the line of best fit here:

brainly.com/question/14279419

#SPJ1

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