Find the Missing Symbol in Sequence: -0.9:-9:-4?0

Fill in the missing symbol (?):

0.9:9:4?0 -0.9:-9:-4\text{?}0

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Complete the appropriate sign
00:04 Let's take only the signs and check what will be the result sign
00:11 Negative divided by negative always equals positive
00:17 Positive divided by negative always equals negative
00:21 Negative is necessarily less than 0
00:24 And this is the solution to the question

Step-by-step written solution

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1

Understand the problem

Fill in the missing symbol (?):

0.9:9:4?0 -0.9:-9:-4\text{?}0

2

Step-by-step solution

Note that in the first step we are dividing a negative number by a negative number:

:=+ -:-=+

This means that the exercise can be written as follows:

+:?0 +:-?0

Now we are dividing a positive number by a negative number:

+:= +:-=-

Therefore, the final exercise will look like this:

?0 -?0

We are left with a negative number, meaning a number less than zero.

Therefore, the answer is:

<0 - < 0

3

Final Answer

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Practice Quiz

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What will be the sign of the result of the next exercise?

\( (-2)\cdot(-4)= \)

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