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Basic Operations Videos 58 videos

Operations with Rational Expressions
8687 Views

It's impressive that these expressions are able to stay so rational even when they're having operations performed on them.

Numbers and Operations: Elementary Number Theory
606 Views

Jack and Jill went up the hill to fetch a pail of water. But what happened when they got up there? They’ve been gone an awfully long time…

SAT Math 7.3 Algebra and Functions
318 Views

SAT Math 7.3 Algebra and Functions

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Find the Absolute Value 276 Views


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Description:

ACT Math Pre-Algebra Drill 3, Problem 3. Find the absolute value.

Language:
English Language

Transcript

00:03

This question should put a little shmoop in your step...

00:06

What does the absolute value of negative 6.23 equal?

00:11

And here are the potential answers...

00:15

Ahh... translations... learning to speak...math.

00:21

So... let's pick this one apart.

00:22

These bar thingies are absolute value signs.

00:26

And we know this is a negative sign.

00:28

This here is a decimal -- often pronounced "point." In... "American," anyway

00:36

So we read the problem as "the absolute value of negative six point two three."

00:42

And as in all absolute value problems, it is only measuring how far the point is from the origin.

00:47

This thing. Number line.

00:50

It's always a positive number, so in this case, its 6.23 units

00:54

to the right from 0 on the Number Line...

00:56

...and the answer is E.

00:58

As in, "Eh."

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