Question

Ok, so Im studying for a precalc quiz and my teacher told us to study some questions but I really need help with them :(

Answer 1

this is the kite problem

we have an angle...we have a hypotenuse..we want the opposite side....so what trig function uses opposite...and hypotenuse?

Answer 2

Sin

Answer 3

alright...and we know sin is opposite / hypotenuse

we dont know the opposite so we have

\[\sin 46 = o/119\]

and we want o...so use algebra to turn this into

sin46 times 119 = o

what is that?

Answer 4

85.60

Answer 5

right...that's your height...makes sense too because if the person is 46 degrees away....an has the line tight....it will be longer right? but if that person were to stand directly under the kite....the line wouldn't be tight right? so he would roll up the line and find that when he stops the kite is 85.60 ft high

Answer 6

Perfect, thanks John

Answer 7

no problem...and as i said before ill keep thinking about the plane lol

Answer 8

Haha okay

Answer 9

because i believe...for that plane..you need to break it up into it's x and y components (like in physics) but if your in pre-calc I don't think that's necessary....
but...here goes anyways

y-component ( means we only want how fast is is traveling UP! not over)
we do

sin(18) times 368

which is 113.7182539

since that is how fast the plane is traveling UP! in ft/s...and we want it to travel 10189 ft up

10189/113.7182539

is 89.6 seconds....I'm not sure....

anyone else here clarify this for us lol

Answer 10

It's right, I checked! Thank you veryyyy much :D

Answer 11

ahh okay lol..nothing like applying a little physics to it :) haha see even tired people can do math :D

your very welcome...feel free to message me or fan me for anymore help :)

Answer 12

Youre the best!

Answer 13

Bye :D

Answer 14

haha glad to help :) have a good day :)