dburch201
dburch201 dburch201
  • 13-02-2018
  • Mathematics
contestada

What is the value of 1/2 x3 + 3.4y when x = 4 and y = 2? (4 points) 12.8 14.8 25.8 38.8

Respuesta :

IamMrMan1 IamMrMan1
  • 13-02-2018
First you need to substitute the values
Equation: 1/2(4)(3) + 3.4(2)
So the easy way to do this is take half of 4 to make 2 which multiplied by 3 is 6.
3.4 doubled is 6.8 so when you do 6.8 + 6
Your answer is 12
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Аноним Аноним
  • 15-02-2019

Answer:

I know the answer!  I got 100 on my quiz for it!  It is 38.8!!!!!!!

Step-by-step explanation:

So what we know:

x = 4

y = s

Alright so, the exponent x^3 evaluates to 64.  64 divided by 2 = 32.  3.4 x 2 = 6.8.  Aaaaand, 32 + 6.8 = 38.8!  There ya go!  :3  Hope this helps a bunch!

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