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ki77a [65]
2 years ago
10

Andrew blew up 25 more balloons than the quotient of the number that Cameron blew up and 8. Cameron blew up b balloons. Write an

expression for the number of balloons Andrew blew up.
Mathematics
1 answer:
Phantasy [73]2 years ago
6 0

Answer:

=Y2-10Y

We move all terms to the left:

-(Y2-10Y)=0

We add all the numbers together, and all the variables

-(+Y^2-10Y)=0

We get rid of parentheses

-Y^2+10Y=0

We add all the numbers together, and all the variables

-1Y^2+10Y=0

a = -1; b = 10; c = 0;

Δ = b2-4ac

Δ = 102-4·(-1)·0

Δ = 100

The delta value is higher than zero, so the equation has two solutions

We use following formulas to calculate our solutions:

Y1=−b−Δ√2aY2=−b+Δ√2a

Δ‾‾√=100‾‾‾‾√=10

Y1=−b−Δ√2a=−(10)−102∗−1=−20−2=+10

Y2=−b+Δ√2a=−(10)+102∗−1=0−2=0

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What is the Slope of 7x+4y=20
yKpoI14uk [10]

<u><em>Answer:</em></u>

slope = \frac{-7}{4}


<u><em>Explanation:</em></u>

<u>The general form of the linear line is:</u>

y = mx + c

where:

m is the slope

c is the y-intercept


<u>The given equation is:</u>

7x + 4y = 20


<u>We will start by putting the equation in the general form:</u>

7x + 4y = 20

4y = -7x + 20

\frac{4y}{4} = \frac{-7x}{4} + \frac{20}{4}

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<u>Now, comparing our equation with the general form, we would find that:</u>

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c = y-intercept = 5


Hope this helps :)

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Write the standard form for a parabola that has the following x intercepts: (-4, 0) and (7, 0).
Alja [10]

Answer:

y = x² - 3x - 28

Step-by-step explanation:

given a parabola with x- intercepts x = a and x = b , then

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here the x- intercepts are x = - 4 and x = 7 , then the factors are

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2 years ago
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