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Evaluate the expression.

1. $${\left|-{\mathtt{4}}\right|}$$

2. $${\left|{\frac{{\mathtt{3}}}{{\mathtt{2}}}}\right|}$$

3. $${\mathtt{\,-\,}}{\left|{\mathtt{1.7}}\right|}$$

Please help. Thanks.

 Aug 4, 2014

Best Answer 

 #6
avatar+3454 
+5

Yup, you wouldn't make #2 negative, because the absolute values make everthing inside them positive if they are negative. If they are positive already though, you just leave them positive.

So #2's answer is 3/2, as Aziz said.

 Aug 4, 2014
 #1
avatar+3454 
+5

Absolute values make everything inside them positive.

For example, |-7| = 7.

But, they only make things inside them positive. So, if you had -|7|, it would become -(7), then -7.

See if you can use this info. to anwer those three questions of yours. :)

 Aug 4, 2014
 #2
avatar+4473 
+5

1. |-4| --> taking abs. value means you obtain the positive part --> 4.

2. $$|\frac{3}{2}|$$ = $$\mathbf{\frac{3}{2}}$$.

3. -|1.7| = -(1.7) = -1.7.

 Aug 4, 2014
 #3
avatar+8262 
0

Question 1) $${\mathtt{4}}$$

Question 2) $${\mathtt{\,-\,}}{\frac{{\mathtt{3}}}{{\mathtt{2}}}}$$?

Question 3) $$-{\mathtt{1.7}}$$?

Are they correct NinjaDevo? OR---

Is this correct anybody?

  

 Aug 4, 2014
 #4
avatar+4473 
+5

Question #2 should be positive as Ninja stated: Absolute values make everything inside them positive.

 Aug 4, 2014
 #5
avatar+8262 
0

So, the answer is $$\frac{3}{2}$$?

 Aug 4, 2014
 #6
avatar+3454 
+5
Best Answer

Yup, you wouldn't make #2 negative, because the absolute values make everthing inside them positive if they are negative. If they are positive already though, you just leave them positive.

So #2's answer is 3/2, as Aziz said.

NinjaDevo Aug 4, 2014
 #7
avatar+8262 
0

Thanks, guys!

I now understand absolute values!

Thanks!

 Aug 4, 2014

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