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PLZ HELP ME!!! THANK YOU!!!! SOS!!!

PLZ HELP ME!!! THANK YOU!!!! SOS!!!-example-1
User Shackles
by
8.3k points

1 Answer

5 votes

Answer:


x=8\\y=6.9

Explanation:

First find x:

Use the sine ratio since you have the side opposite the given angle and need to know the hypotenuse:


sine=(opposite)/(hypotenuse)

Insert values:


sin30=(4)/(x)

Isolate x. Multiply both sides be x:


x*(sin30)=x*((4)/(x))\\\\x*sin30=4

Divide both sides by sin30°:


(x*sin30)/(sin30)=(4)/(sin30)\\\\x=(4)/(sin30)

Insert into a calculator:


x=8

Now find y. Use either the cosine or tangent ratio:


cosine=(adjacent)/(hypotenuse)\\\\tangent=(opposite)/(adjacent)

Insert values:


cos30=(y)/(8)

Isolate y. Multiply 8 on both sides:


8*(cos30)=8*((y)/(8) )\\\\8*cos30=y\\\\y=8*cos30

Insert into a calculator:


y=6.9

Finito.

User Pawan Rao
by
8.2k points

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