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Mathematics 13 Online
OpenStudy (nani200):

Solve for x. Round your answer to 2 decimal places. Here's a picture

OpenStudy (nani200):

|dw:1481861541579:dw|

satellite73 (satellite73):

i take it the other angle is a right angle yes?

OpenStudy (nani200):

yes

satellite73 (satellite73):

what trig ratio has "adjacent over hypotenuse"?

OpenStudy (nani200):

cos

satellite73 (satellite73):

right so \[\cos(58^\circ)=\frac{17}{x}\]

satellite73 (satellite73):

solve for \(x\) you will need a calculator at the last step

satellite73 (satellite73):

good from there?

OpenStudy (nani200):

do you multiply x first?

satellite73 (satellite73):

you mean to solve? i guess that is one way

satellite73 (satellite73):

\[a=\frac{b}{c}\iff c=\frac{b}{a}\]

OpenStudy (nani200):

17/ cos58?

satellite73 (satellite73):

which is the math teacher way of saying just do \[x=\frac{17}{\cos(35^\circ)}\] with your calculator

satellite73 (satellite73):

yup

OpenStudy (nani200):

where did you get 35

satellite73 (satellite73):

typo

OpenStudy (nani200):

oh ok

satellite73 (satellite73):

should be what you wrote

OpenStudy (nani200):

i got 32.08

OpenStudy (nani200):

thanks so much again :)

satellite73 (satellite73):

i got that too yw

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