Ask your own question, for FREE!
Mathematics 10 Online
OpenStudy (anonymous):

Find the value of x. Round the answer to the nearest tenth, if needed.

OpenStudy (anonymous):

|dw:1426855445897:dw|

OpenStudy (bloomlocke367):

I forgot how to do that... sorry...

OpenStudy (anonymous):

my teacher didnt even give an equation to do it

OpenStudy (bloomlocke367):

@math

OpenStudy (bloomlocke367):

oops @mathmate

OpenStudy (ahsome):

Any other information given?

OpenStudy (anonymous):

OpenStudy (anonymous):

thats all I was given

OpenStudy (ahsome):

have you learn of the cosine rule and the sine rule, without a right-angle triangle?

OpenStudy (shamim):

Use pythagorean theorem a^2=b^2+c^2

OpenStudy (shamim):

U hv 3 right angle

OpenStudy (shamim):

Frm each right angle triangle u will get a equation. Then try to sole those

OpenStudy (mathmate):

When a perpendicular is dropped from the right angle of a right triangle, use metric relations: |dw:1426856588236:dw| Use the third relation: h^2=cd

OpenStudy (ahsome):

|dw:1426856591208:dw|As such. We can make two functions: \[tan(y)=\frac{x}{49}\]\[tan(y)=\frac{21}{x}\]. Now, since they equal each other, you should be able to cancel them out\[\frac{x}{49}=\frac{21}{x}\]\[x^2=21*49\]\[x^2=1029\]\[x=\sqrt{1029}\]\[x=32.1\]Therefore, x is 32.1

OpenStudy (ahsome):

|dw:1426856794611:dw|

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!