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tamaranim1 [39]
3 years ago
6

What is a equivalent addition expression for -8-(-4)-9

Mathematics
2 answers:
Elenna [48]3 years ago
6 0
You can write it as: 
-8 + 4 + -9 
Subtracting a negative is the same thing as adding a positive. Hope this helps!
finlep [7]3 years ago
5 0
Hey there! :D

Remember, two negatives equal a positive. A positive and a negative equal a negative. 

-8-(-4)-9

-8 is just -8. Nothing else is really interacting with it. 

-(-4) is two negatives. This makes it positive. (+4) 

-9 stays the same. 

The numbers that go in the blank are:

-8, 4, and -9. 

I hope this helps!
~kaikers
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Identify an equation in point-slope form for the line perpendicular to
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Answer:

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Step-by-step explanation:

Given

Function; y = -2x + 8

Required

Find an equation perpendicular to the given function if it passes through (-3,9)

First, we need to determine the slope of:  y = -2x + 8

The slope intercept of an equation is in form;

y = mx + b

<em>Where m represent the slope</em>

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We'll have that

m_1 = -2

Going from there; we need to calculate the slope of the parallel line

The condition for parallel line is;

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Divide both sides by -2

m_2 =\frac{ -1}{-2}

m_2 =\frac{1}{2}

The point slope form of a line is;

y - y_1 = m_2(x - x_1)

Where (x_1,y_1) = (-3,9) and m_2 =\frac{1}{2}

y - y_1 = m_2(x - x_1)becomes

y - 9 = \frac{1}{2}(x - (-3))

Open the inner bracket

y - 9 = \frac{1}{2}(x +3)

<em>Hence, the point slope form of the perpendicular line is: </em>

<em />y - 9 = \frac{1}{2}(x +3)<em />

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