anonymous
  • anonymous
Need some help for this.. A 10-foot ladder leans against a wall with its foot braced 3 feet from wall’s base. How far up the wall does the ladder reach? Show your work. Round answer to the nearest hundredths.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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Mehek14
  • Mehek14
|dw:1437932114293:dw| do you know the pythagorean theorem?
anonymous
  • anonymous
a^2+ b^2 = c
Mehek14
  • Mehek14
|dw:1437932176201:dw| \(a^2+b^2=c^2\)

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Mehek14
  • Mehek14
you have a and c \(3^2+b^2=10^2\)
Mehek14
  • Mehek14
tell me what \(3^2=\\10^2=\)
anonymous
  • anonymous
9 and 100
Mehek14
  • Mehek14
ok subtract 100-9
anonymous
  • anonymous
91
Mehek14
  • Mehek14
\(\sqrt{91}\)
anonymous
  • anonymous
Oh. can't make a radical symbol.
Mehek14
  • Mehek14
do it here https://www.google.com/webhp?sourceid=chrome-instant&rlz=1C1CHWA_enUS629US629&ion=1&espv=2&ie=UTF-8#q=calculator put √ and then 91
anonymous
  • anonymous
\[10 \sin \left(\cos ^{-1}\left(\frac{3}{10}\right)\right)=\sqrt{91} \]
anonymous
  • anonymous
Okay thanks @Mehek14
Mehek14
  • Mehek14
and then just round your answer
anonymous
  • anonymous
How do i round √91?
Mehek14
  • Mehek14
well if you put √91 in the calculator, you get 9.53939201417 round that to 9.54
anonymous
  • anonymous
Oh didn't put it in a calculator thanks for telling me that XwX
anonymous
  • anonymous
So i am finish @Mehek14?
Mehek14
  • Mehek14
yes 9.54 is the final answer
anonymous
  • anonymous
Okay thanks @Mehek14
Mehek14
  • Mehek14
yw

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