Question

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.

Answer 1

do you know the pythagorean theorem?

Answer 2

a^2+ b^2 = c

Answer 3

\(a^2+b^2=c^2\)

Answer 4

you have a and c
\(3^2+b^2=10^2\)

Answer 5

tell me what \(3^2=\\10^2=\)

Answer 6

9 and 100

Answer 7

ok subtract
100-9

Answer 8

91

Answer 9

\(\sqrt{91}\)

Answer 10

Oh. can't make a radical symbol.

Answer 11

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

Answer 12

\[10 \sin \left(\cos ^{-1}\left(\frac{3}{10}\right)\right)=\sqrt{91} \]

Answer 13

Okay thanks @Mehek14

Answer 14

and then just round your answer

Answer 15

How do i round √91?

Answer 16

well if you put √91 in the calculator, you get
9.53939201417
round that to 9.54

Answer 17

Oh didn't put it in a calculator thanks for telling me that XwX

Answer 18

So i am finish @Mehek14?

Answer 19

yes
9.54 is the final answer

Answer 20

Okay thanks @Mehek14

Answer 21

yw