Question

find angle g rounded to the nearest degree

Answer 1

\[\large\sin(g)=\frac{15}{17}\]
\[\large g=\sin^{-1}(\frac{15}{17})\] and a calculator set in degree mode

Answer 2

where it says "convert from radians to degrees" in this link
http://www.wolframalpha.com/input/?i=arcsin%2815%2F17%29

Answer 3

ohhh ok i get it!! my calculator wasnt in degrees!

Answer 4

yeah that is a big problem, switching back and forth
but a clue is when you get something like \(.7268\) instead of something like \(12.46\)

Answer 5

ok thanks

Answer 6

since you are on a computer, you might as well use wolfram like the link i sent
that way you get them both
yw

Answer 7

ok i will but mind helping on couple more?

Answer 8

@satellite73

Answer 9

no go ahead

Answer 10

i mean "no i don't mind"

Answer 11

find angle f

Answer 12

how do you know when to use cos-1 or any of those -1

Answer 13

this one you don't even need a calculator for but we can do it that way too
since \(\sin(f)=\frac{9}{18}=\frac{1}{2}\) then \(f=30\) degrees

Answer 14

oh good question
how do you know which one to use!

Answer 15

in this case you only know two sides, although you could find the third one by pythagoras
since you know the "opposite" side and the "hypotenuse" use
\[\sin(f)=\frac{opp}{hyp}\] because it is the one you know

Answer 16

then \(f=\sin^{-1}(\frac{1}{2})=30\)

Answer 17

if you knew the "adjacent" side and the "hypotenuse" you would use cos
and if you knew "opposite" and "adjacent" you would use tan

Answer 18

if you know them all, you can take your pick, it won't make any difference which one you use

Answer 19

ohh ok i get itso if i get all side but no degrees do i still use wichever??

Answer 20

there is a simple right triangle, a 3 - 4 - 5 right triangle
suppose we want the angle i marked
you could use
\[\sin^{-1}(\frac{4}{5})\] or
\[\cos^{-1}(\frac{3}{5})\] or
\[\tan^{-1}(\frac{4}{3})\] you will get the same number for each

Answer 21

ok i understand it so much better now thank you!

Answer 22

yw
you still got more or is that enough?

Answer 23

i have more but i think i got it from here thanks

Answer 24

ok
good luck and post if you get stuck

Answer 25

hey i have 8 questions i tried the but i failed idk why maybe im doing something wrong im sorry if its time consuming but mind helping i only ask because i need this test to pass a class in order to graduate !

Answer 26

@satellite73

Answer 27

kk

Answer 28

it says to find the correct equation for

Answer 29

equation for the missing side? or an angle?

Answer 30

sorry correct equation for triangle xyt

Answer 31

a)cosT=xyt
b)sinT=4/17
c)cosT=17/4
d)sinT=17/4

Answer 32

those are the answer choices

Answer 33

ok so we want to look at T

Answer 34

i believe so

Answer 35

you only have the two numbers 4 and 17
4 is the side "adjacent" to T
and 17 is the hypotenuse

Answer 36

\(\frac{adj}{hyp}\) is cosine so
\[\cos(T)=\frac{4}{17}\]

Answer 37

ohhh ok i get it

Answer 38

theirs one similar but it has 3 numbers

Answer 39

actually, however, all your answer choices are wrong

Answer 40

b)sinT=4/17 is wrong because it should be cosine and not sine

Answer 41

c)cosT=17/4 is wrong because it should be \(\frac{4}{17}\)

Answer 42

sorry i typed it wrong it was a)cosT=4/17

Answer 43

d)sinT=17/4 is way off

Answer 44

oooh okay, then that is correct

Answer 45

you got another?

Answer 46

yes if you dont mind i have 5 more similar to this