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Misha Larkins [42]
2 years ago
12

Y= -x^2+10x-25 in factored form and what is the x intercept

Mathematics
1 answer:
Strike441 [17]2 years ago
5 0

Step-by-step explanation:

X-intercept, y = 0

0 = -x² + 10x - 25

-x² + 10x - 25 = 0

-(x² - 10x + 25) = 0

x² - 10x + 25 = 0

(x - 5)(x - 5) = 0

x = 5

(5,0)

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If the length of a rectangle is a two-digit number with identical digits and the width is 1/10 the length and the perimeter is 2
Oksanka [162]

If the length of a rectangle is a two-digit number with identical digits and the width is 1/10 the length and the perimeter is 2 times the area of the rectangle, what is the the length and the width

Solution:

Let the length of rectangle=x

Width of rectangle=x/10

Perimeter is 2(Length+Width)

= 2(x+x/10)

Area of Rectangle= Length* Width=x*x/10

As, Perimeter=2(Area)

So,2(x+x/10)=2(x*x/10)

Multiplying the equation with 10, we get,

2(10x+x)=2x²

Adding Like terms, 10x+x=11x

2(11x)=2x^2

22x=2x²

2x²-22x=0

2x(x-11)=0

By Zero Product property, either x=0

or, x-11=0

or, x=11

So, Width=x/10=11/10=1.1

Checking:

So, Perimeter=2(Length +Width)=2(11+1.1)=2*(12.1)=24.2

Area=Length*Width=11*1.1=12.1

Hence, Perimeter= 2 Area

As,24.2=2*12.1=24.2

So, Perimeter=2 Area

So, Answer:Length of Rectangle=11 units

Width of Rectangle=1.1 units

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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I how do I do this ?!??
Vinil7 [7]

Answer:

The answer is

m=-\dfrac{3}{2}

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Step-by-step explanation:

The slope of the line is given by

m=\dfrac{y_2-y_1}{x_2-x_1}

using the coordinates of the given points

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we get

m=\dfrac{1-4}{2-0}=-\dfrac{3}{2}

and b is the intersection with the y-axis, so b=4

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