Destinyyyy
  • Destinyyyy
Help with last problem..
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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Destinyyyy
  • Destinyyyy
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Destinyyyy
  • Destinyyyy
f(10)- f(0)/ 10-0 = (1.5 square root 10 +28.6) - (1.5 square root 0 +28.6)/ 10-0 Is that correct? Average rate of change was a few units ago. Need a refresher
Destinyyyy
  • Destinyyyy
@Nnesha @phi

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anonymous
  • anonymous
yes
Destinyyyy
  • Destinyyyy
Okay. Next I get rid of the parenthesis and distribute the - correct?
anonymous
  • anonymous
hmmm hold on
anonymous
  • anonymous
i don't bout this one but i think so i cant be too sure tho
ankit042
  • ankit042
= 1.5*sqrt(10)
Destinyyyy
  • Destinyyyy
?
phi
  • phi
yes, your idea is correct f(10)- f(0)/ 10-0 or \[ (1.5 \sqrt{10} + 28.6 - 1.5 \sqrt{0} - 28.6)/10 \] notice the constant 28.6 subtracts off also the term 1.5 sqr(0) is just 1.5*0 =0 so it simplifies to \[ 0.15 \sqrt{10}\] now use a calculator or type 0.15*sqrt(10)= into google and round the answer to the nearest 10th
Destinyyyy
  • Destinyyyy
It says .47
Destinyyyy
  • Destinyyyy
How did you get 0.15.. Shouldn't it stay as 1.5?
Destinyyyy
  • Destinyyyy
Final answer .5
phi
  • phi
How did you get 0.15.. Shouldn't it stay as 1.5? the "bottom" is 10 remember? ( f(10) - f(0) )/ (10 -0) the top simplifies to \( 1.5\sqrt{10} \) but we divide that by 10
Destinyyyy
  • Destinyyyy
You put 0.15
Destinyyyy
  • Destinyyyy
I thought it was 1.5. But above you put 0.15
phi
  • phi
yes \[ \frac{1.5\sqrt{10}}{10}= 0.15 \sqrt{10} \]
Destinyyyy
  • Destinyyyy
Ohh okay

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