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aliya0001 [1]
3 years ago
15

Write the equation of the graph in slope-intercept form y=mx+b

Mathematics
1 answer:
s344n2d4d5 [400]3 years ago
4 0

Answer:

y=(2/5)x-1

Step-by-step explanation:

okay so basically just take the Y intercept, so (-1,0) and put it in for b, then find the slope, which is 2/5, and plug it in for m.

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The length of a rectangle is 7 more than the width the area is 744 square centimeters find length and width of rectangle
andrezito [222]

Answer:

l=31\ cm\\\\w=24\ cm

Step-by-step explanation:

The formula that is used to calculate the area of a rectangle is:

A=lw

Where "l" is the lenght and "w" is the width.

You know that the area of that rectangle is:

A=744\ cm^2

And, according to the exercise, its lenght is 7 more than its width; then:

l=w+7

Then, you can make the corresponding substitution into the formula A=lw:

 744=(w+7)w

Simplify:

744=w^2+7w\\\\w^2+7w-744=0

Factor the equation. Find two numbers whose sum is 7 and whose product is -744. These are 31 and -24.

Then, you get:

(w-24)(w+31)=0\\\\w_1=24\\\\w_2=-31

The width of the rectangle is the positive value:

w=24\ cm

Then, the lenght is:

l=24+7\\\\l=31\ cm

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Step-by-step explanation:

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Step-by-step explanation:

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