anonymous
  • anonymous
Evaluate the expression 3.14(a2 + ab) when a = 4 and b = 2.
Mathematics
chestercat
  • chestercat
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anonymous
  • anonymous
anonymous
  • anonymous
3.14(8+8) 3.14(16) =______
anonymous
  • anonymous
50.24

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misssunshinexxoxo
  • misssunshinexxoxo
Solve 3.14×(42+4×3)
misssunshinexxoxo
  • misssunshinexxoxo
http://www.wolframalpha.com/input/?i=3.14%284%5E2%2B4*3%29
misssunshinexxoxo
  • misssunshinexxoxo
Answer is in link ^
misssunshinexxoxo
  • misssunshinexxoxo
87.92
anonymous
  • anonymous
wait did you mean a^2 or ax2
misssunshinexxoxo
  • misssunshinexxoxo
a^2
anonymous
  • anonymous
then outdent it be 3.14(16+8) since a= 4 and 4^2 = 16..and ab = 4(2) = 8
anonymous
  • anonymous
wouldn't*
anonymous
  • anonymous
is it 50.24 or 87.92?
anonymous
  • anonymous
it not 50.24... it's 75.36
anonymous
  • anonymous
i was wrong the first time since i thought you meant ax2 not a squared lol
anonymous
  • anonymous
it is a x 2
anonymous
  • anonymous
anonymous
  • anonymous
its a to the power of 2
anonymous
  • anonymous
so then that would be 3.14( 4^2 + 4(2)) = 3.14 (16 + 8) = 3.14(24) =_____
anonymous
  • anonymous
75.36
anonymous
  • anonymous
yep!
anonymous
  • anonymous
thanks! c:
anonymous
  • anonymous
np :)

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