karatechopper
  • karatechopper
@apoorvk help!!!
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
apoorvk
  • apoorvk
@karatechopper ask!!
anonymous
  • anonymous
question?
anonymous
  • anonymous
lol

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karatechopper
  • karatechopper
ok so i have this word problem and i have it half done and i got stuck
anonymous
  • anonymous
... post the problem
karatechopper
  • karatechopper
A triangle has an are of 77 square inches. Find the length of the base if the base is 3 inches more than the height
karatechopper
  • karatechopper
*area
apoorvk
  • apoorvk
okay... see the area of any triangle is A = 1/2 x (height) x (base) let the height be 'k'. then base = k+3 so, (1/2 )(k) (k+3) = 77 can you solve that now??
karatechopper
  • karatechopper
ok good just what i got!
karatechopper
  • karatechopper
what have you gotten for the answer?
apoorvk
  • apoorvk
hmm.. now i think you got stuck?? okay listen now.. multiply both sides by 2.... then simplify the LHS. and bring every term to the left side. you 'll find you have a very familiar kind of quadratic equation.. solve for 'k' if still having problems, i ll show how to solve it
karatechopper
  • karatechopper
plz do show how u r gonna solve it
apoorvk
  • apoorvk
okay you have an answer? post what you got. i ll verify it for you!
apoorvk
  • apoorvk
okay there it goes....|dw:1332799036998:dw| so, i get k+14=0 and k-11=0 so k= -14 or 11 NOW... length of a side cannot be *negative*. so "-14" CANNOT be a possible solution. so k=11 only now base was (k+3)... since we assumed k is the height. so, base= 11+3 = 14
karatechopper
  • karatechopper
:O makes sense...
karatechopper
  • karatechopper
lol u know just before u posted tht i figured out how stupid i was!
apoorvk
  • apoorvk
lol... we 're stupid "at times".. (ans some people like me all the time!!! :D :D :p)
karatechopper
  • karatechopper
hahah

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