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Novosadov [1.4K]
3 years ago
7

What does 5-7 equal to

Mathematics
2 answers:
Bogdan [553]3 years ago
4 0

5-7 = -2

" Negative Two "

mezya [45]3 years ago
4 0

Sometimes it helps to think of subtraction in terms of "movement". Subtracting some positive amount is the same thing as moving <em>left </em>on the number line. If we start on the number 5 and move 7 to the left, you can see that we pass zero and end up 2 in the negative, so 5 - 7 = -2.

Another way to think about this is to look at subtracting 7 as subtracting 5 and <em>then </em>subtracting another two from 5 -- 5 - 5 - 2, in other words. 5 - 5 = 0, and 0 - 2 = -2, so we end up at the same place.

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Answer:

I don´t know and i don´t want you to get it wrong so i think it is..

Step-by-step explanation:

-18 is probably the answer

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I need help with these questions for Quadratic functions
STALIN [3.7K]

9514 1404 393

Explanation:

1. The general form of a quadratic in standard form* is ...

  f(x)=ax^2+bx+c

An example is ...

  f(x)=2x^2+3x-5

The constant c is the y-intercept, so is the easiest bit of information to obtain in this form.

__

2. The general form of a quadratic in vertex form can be written as ...

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An example is ...

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_____

* In the UK, "standard form" is vertex form.

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