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natulia [17]
3 years ago
6

What number should be added to 77 to make the sum 0?

Mathematics
2 answers:
labwork [276]3 years ago
5 0
You should add -77 to 77 because it will cancel out.
andrey2020 [161]3 years ago
4 0
Additive inverses are two numbers that add to 0.
0 is the additive inverse of 0 since 0 + 0 = 0.
For all positive and negative numbers, to find the additive inverse of a number, change its sign.
The additive inverse of 1 is -1.
The additive inverse of 100 is -100.
The additive inverse of -9.5 is 9.5.
In this problem, the additive inverse of 77 is -77.
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Given that the point P lies 1/3 along the segment RS as shown below:

To find the y coordinate of the point P, since the point P lies on 1/3 along the segment RS, we have

\begin{gathered} RP:PS \\ \Rightarrow\frac{1}{3}:\frac{2}{3} \\ thus,\text{ we have} \\ 1:2 \end{gathered}

Using the section formula expressed as

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\begin{gathered} m=1 \\ n=2 \end{gathered}

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\begin{gathered} x_1=-7 \\ y_1=-2 \\ x_2=2 \\ y_2=4 \end{gathered}

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\begin{gathered} [\frac{1(2)+2(-7)}{1+2},\frac{1(4)+2(-2)}{1+2}] \\ \Rightarrow[\frac{2-14}{3},\frac{4-4}{3}] \\ =[-4,\text{ 0\rbrack} \end{gathered}

Hence, the y-coordinate of the point P is

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