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Mathematics 21 Online
OpenStudy (anonymous):

how do you solve for x? (picture)

OpenStudy (anonymous):

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OpenStudy (acxbox22):

use the pythagorean theorum a^2+b^2=c^2 \[8^2+10^2=c^2\] \[64+100=c^2\]

OpenStudy (acxbox22):

\[164=c^2\]

OpenStudy (acxbox22):

now take the square root of both sides to find c which in this case c is x

OpenStudy (anonymous):

hey @acxbox22 how would I solve for y?

OpenStudy (acxbox22):

do you know basic trignometry?

OpenStudy (anonymous):

I know a bit

OpenStudy (acxbox22):

to solve for angle y we can use tangent(we have opposite and adjacent sides given) tan y = 8/10 tan y = 0.8 now to solve for y we have to divide by tan on both sides that is the same thing as tan^-1 x 0.8 enter that into a calculator and round

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