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Studentka2010 [4]
3 years ago
7

How could you rewrite the expression (3 + 5) + 8 using the Associative Property of Addition?

Mathematics
1 answer:
spin [16.1K]3 years ago
8 0
3+(5+8)<span>
</span>The Associative Property of Addition states that you can add or multiply numbers any way, it doesn't matter how they are grouped.
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Help me with question 4 and 5
lisov135 [29]

Answer:

2.6768·10^(-14)  (Answer C)

Step-by-step explanation:

Problem 4:  We ADD the powers of 10:  10^6·10^(-3) = 10^3.  Also, 3.6·1.7 = 6.12.  Therefore, Answer D is correct.

Problem 5:  Again we ADD (combine) the powers of 10:  10^(-10)·10^(-5) =

10^(-15).  4.78·5.6 = 26.768.  Our intermediary answer is thus:

26.768·10^(-15).  This must be rewritten in the form x.xxxx, so here we have:

2.6768·10^(-14)  (Answer C)

3 0
3 years ago
A state map has a circle-shaped compass. If the radius of the compass is 15 millimeters, what is the approximate area of the com
GuDViN [60]
The area of a circle by definition is given by:
 A = pi * r ^ 2
 Where,
 r: radius
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 Answer:
 The approximate area of the compass is:
 A = 706.5 mm ^ 2
8 0
3 years ago
4-(6x1000)+99-490=<br> i need u guys help and thank you
Rashid [163]

Answer:

-6387

Step-by-step explanation:

I have a feeling you're just giving away points :)

3 0
3 years ago
What is greater 8ft or 3yd
alexdok [17]
3yds because 1 yards is 3 feet so 3 times 3=9 feet greater than 8feet
8 0
3 years ago
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I just need help with number 25. Show work please
PSYCHO15rus [73]
97.8-63.65

  97.80
-63.65
-----------
34.15
  
8 0
4 years ago
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