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frozen [14]
4 years ago
10

Write an equation of each line in slope-intercept form

Mathematics
1 answer:
Elena L [17]4 years ago
3 0

Answer:

y = -2x

Step-by-step explanation:

The line intercepts in point (0,0) so in the equation: y = mx + b, the b will be 0 (or gone).

Basically the equation would be:

y = mx

You only need the m or the slope of the line.

To know this, just count the rise/run from two points.

I chose two points given: (0,0) and (4,2)

From (0,0) to (4,2), you rise up by 4 and go left by 2 (negative 2 because it is going left).

rise/run

4/-2 = -2

m = -2

So the equation would be y = -2x

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Answer:

1/2

Step-by-step explanation:

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3 years ago
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Simplify 25^ - 1/2 <br><br>Please explain! I know the answer is 1/5 but why?
lisov135 [29]

(25)^{-\frac{1}{2} }

When the exponent is negative, you have to make the number a fraction(1 over the number).

For example:

25^{-2} = \frac{1}{25^{2} }

x^{-1} =\frac{1}{x^{1}  }

This gets rid of the negative, but it leaves the exponent

(25)^{-\frac{1}{2}}  = \frac{1}{25^{1/2}}

When an exponent is a fraction, it is the square root.

For example:

x^{\frac{1}{3}} =  \sqrt[3]{x}

x^{\frac{1}{2}}  =\sqrt{x}

x^{\frac{1}{4}}=\sqrt[4]{x}

So...

\frac{1}{25^{1/2}} = \frac{1}{\sqrt{25}  } = \frac{1}{5}

3 0
4 years ago
How to do -4x+5y+6z?
Gala2k [10]

Answer:

There are no like terms to therefore the answer is -4x+5y+6z

3 0
3 years ago
How would you start to find the incenter of ΔABC?
natka813 [3]
The incenter of a triangle is the center of its inscribed circle. <span>Generally, the easiest way to find the incenter is by first determining the </span>inradius and then<span> each side of the triangle can be </span>translated<span> by the length of the inradius, We also can use coordinate geometry through this formula:

</span>(\frac{ax_{1}+bx_{2}+cx_{3}}{a+b+c},\frac{ay_{1}+by_{2}+cy_{3}}{a+b+c})

Being a, b, c side lengths and with (x_{1}, y_{1}); (x_{2}, y_{2}); (x_{3}, y_{3}); the vertices.<span>

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7 0
3 years ago
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Durante a distribuição de bombons para seus netos, vovó Cláudia percebeu que, se distribuísse 11
Aleksandr [31]
<span>During the distribution of bonbons to her grandchildren, Grandma Claudia realized that if she distributed 11 chocolates for each of them, 10 candies would remain. In the meantime, distribute 13 chocolates each of his grandchildren, would lack 6. Based on this information, it is CORRECT to state that the difference between the number of candies and the number of grandchildren is A) 90. B) 30. C) -90. D) -30.

Let n=number of candies,
and c=number of grandchildren
The story expressed in modulo gives the two following equations:
then
mod(n,11)=10  (ten left if each given 11).............(1)
mod(n,13)=-6, or
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By enumerating (1), we have
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By enumerating (2), we have
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Hence there are 8 grandchildren and 98 candies.

The difference of the number of candies and the number of grandchildren is therefore 98-8=90.


Another way to get the number of grandchildren is
c=(10-(-6))/(13-11)=8

</span>
5 0
3 years ago
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