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Julie Silva
Numerade Educator

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Absolute Value - Example 1

In mathematics, the absolute value or modulus |x| of a real number x is its numerical value without regard to its sign. The absolute value of a number may be thought of as its distance from zero along a number line; this interpretation is analogous to the distance function assigned to a real number in the real number system. For example, the absolute value of ?4 is 4, and the absolute value of 4 is 4, both without regard to sign.

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Nizamuddeen A.

April 29, 2021

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Pranati K.

June 1, 2021

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Pranati K.

June 1, 2021

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Jafari R.

June 6, 2021

The audio keeps cutting out for me

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Camila N.

June 11, 2021

why does the audio keep cutting off throughout the video ?

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Joey H.

June 18, 2021

Very well explained.

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Joey H.

June 18, 2021

Ihab Ismail Ahmed

June 22, 2021

zero ---------------------------- zero

Ihab Ismail Ahmed

June 22, 2021

Audra L.

July 16, 2021

Yes I found that it did cut out too, but if you click back just a click of a second it will restart repeating a word or two of what you just heard but I found if you do this through the video you can watch the whole and understand it as well, I know a pai

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Mobarok K.

August 7, 2021

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Mobarok K.

August 7, 2021

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Amna A.

October 4, 2021

a student sells homemade candles. write an expression for her total revenue if she sells x candles for aed 15 each

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Amna A.

October 4, 2021

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Melody D.

October 19, 2021

i need help i this question Penelope bought four used cars for her family. She spent a total of $7,296. Assuming each car cost the same amount, how much did she purchase each car for?

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Ann-Mhe D.

November 25, 2021

0. Standard automobile license plates in California display a nonzero digit, followed by three letters, followed by three digits. How many different standard plates are possible in this system?

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Lyricsph L.

December 11, 2021

Ringer’s solution contains 6 g of sodium chloride, 0.3 g of potassium chloride and 0.2 g of calcium chloride in 1 liter of solution. How many milliequivalents of each chloride are contained in 250 mL of the solution?

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Lyricsph L.

December 11, 2021

Ringer’s solution contains 6 g of sodium chloride, 0.3 g of potassium chloride and 0.2 g of calcium chloride in 1 liter of solution. How many milliequivalents of each chloride are contained in 250 mL of the solution?

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Video Transcript

we're being asked to find the opposite for each number. So remember, the opposite means it's a number that's the same distance from zero on the number line. Just it appears on the opposite side of the number line. So in other words, if it's positive, if the original numbers positive, he ever has to be negative. And if the original numbers negative, the upper will have to be positive. So let's start with Part A. We have positive five, so we have to think of what number would be five minutes away. But in the negative side of our number line. Well, that would be negative. Five. So notice the opposite really just means you need the opposite sign. So for Part B, we have negative 16. So we have to think of what number is 16 units away from zero on the positive side of the number one? Well, that would be positive. 16. So notice the opposite of a positive is a negative, and the opposite negative is a positive well part. See, we have a decimal value, so we have negative 9.8. But just because it's a decimal doesn't mean it changes anything so the number that would be 9.8 units away. On the positive side would just be positive. 9.8. And lastly, we have a fraction We have one half. So we have to think of a number that is one half unit away from zero, but on the opposite side of the number line. Well, that would simply just be negative one half. So again, notice to find the opposite of a number. All you're doing is changing the sign. If it starts positive, it will become negative. And if it starts negative, it will become positive.

Julie Silva
Syracuse University
Algebra

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