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DanielleElmas [232]

2 years ago

10

When you have -13+20 how exactly did you get 7?

2 answers:

puteri [66]2 years ago

7 0

Imagine a number line. 0 is the start and it either goes to the right which is higher or to the left which is lower. -13 goes to the left since all negative numbers are at the left of 0. So you basically count up from -13 which is -12,-11,-10,-9,-8,-7,-6,-5,-4,-3,-2,-1, and 0. We just went 13 places up, so only 7 more to go. Counting up from 0 seven places is 7. So the answer is seven. Keep practicing and it will get easier and make sense.

BlackZzzverrR [31]2 years ago

5 0

Answer: you start with a -13 right? well then you add a positive 20 which will then equal to 7 if you were adding a -20 then you get -33

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

The given triangle has vertices at A(-1,2), B(4,2) and C(3,-1).

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We apply the distance formula to find length of the sides.

$|AB|=\sqrt{(4--1)^2+(2-2)^2}$

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