Find the value of x. Round to the nearest tenth.

Question

anonymous · Answer

|dw:1376016235210:dw|

anonymous · Answer

You use the Pythagorean Theorem Which is $$a ^{2}+b ^{2}=c ^{2}$$

anonymous · Answer

C would be your X

anonymous · Answer

can you help me with setting it up? @OpenSessame

anonymous · Answer

Is 20 the side length or the angle? Your diagram makes it look like the angle, in which case you don't want to use pytagoras.

anonymous · Answer

20 degrees is the angle

anonymous · Answer

ok. sin(20) = 19 / x
Solve for x.
Remember sin is opposite side / hypotenuse.

anonymous · Answer

im sorry but im so confused and I really suck at math

anonymous · Answer

No problem. Important concept: sin(angle) = opposite side / hypotenuse.
Pretend like you are standing in the 20 degree angle. 19 is the opposite side, x is the hypotenuse.
sin(20) = 19 / x
multiply both sides by x
xsin(20) = 19
divide both sides by sin(20)
x = 19 / sin(20) = put that in your calculator = 55.5

anonymous · Answer

Find the value of x. Round the length to the nearest tenth.
|dw:1376016885520:dw|

anonymous · Answer

The formula you'll want to understand and recall for this one is
tan(angle) = opposite / adjacent
Can you take it from there?

anonymous · Answer

nope!!!!!! I need as much help if you can

anonymous · Answer

To approach the runway, a pilot of a small plane must begin a 10 descent starting from a height of 1983 feet above the ground. To the nearest tenth of a mile, how many miles from the runway is the airplane at the start of this approach? 
|dw:1376017500374:dw|