Question

Find x to the nearest tenth. Consult the table above if you need to find the correct tangent ratio.

x =

Answer 1

\[\tan(50)=\frac{x}{12}\]
\[x=12\tan(50)\]

Answer 2

i get 14.3

Answer 3

k?

Answer 4

thats right did u mulitply it?

Answer 5

yes. i did it in one step on the calculator. i hit 12 times tan 50

Answer 6

oh could you help me with one more if its not to much trouble

Answer 7

ask!

Answer 8

i will wait here

Answer 9

before you help me let me explain how i think i get it

Answer 10

ok it is like the last one

Answer 11

u take tan 80 and multiply it bye 3?

Answer 12

yup

Answer 13

i got 17.01

Answer 14

so would it be 17.2?

Answer 15

round to 17

Answer 16

okay so if you have 6.92

Answer 17

does it round to 7?

Answer 18

depends on what place you are rounding to. tenths place you get 6.9. ones place you get 7

Answer 19

but 17.01 does not round to 17.2. it is either 17.01 or 17.0 = 17

Answer 20

it was the tenths place :D you make it very easy to understand :)

Answer 21

thanks. any more?

Answer 22

yes its a degrrees one

Answer 23

Find A to the nearest degree. Consult the table above if you need to find the correct tangent ratio. Enter your answer as a whole number.

A = degrees

Answer 24

ah in this one you know the lengths of the sides and you want the angle.

Answer 25

what is \[\tan(A)\]?

Answer 26

we dont know

Answer 27

yes, actually you do. it is opposite over adjacent and you know those lengths

Answer 28

\[\tan(A)\] you know, it is A you do not know

Answer 29

\[\tan(A)= \frac{3}{8}=.375\]

Answer 30

thatsa a degree?

Answer 31

you have to find A

Answer 32

no that is not the angle. that is the tangent of the angle. it is the angle what you want. i just computed \[\frac{opposite}{adjacent}\] and those numbers were given as the lengths

Answer 33

so its .375 degrres

Answer 34

in order to find A you have to find the angle whose tangent is .375

Answer 35

hold on

Answer 36

we do not know A yet. we only know the tangent of A

Answer 37

alright

Answer 38

to find A you have to take out your calculator

Answer 39

make sure it is in degree mode

Answer 40

and find \[\tan^{-1}(.375)\]

Answer 41

that will give you the angle. first step was to find the tangent of the angle. second step is to find the angle.

Answer 42

on your calculator you probably hit "2nd" then "tan" then .375 that will give you the angle whose tangent is .375

Answer 43

i have an answer. let me know when you get one

Answer 44

i dont have a snd in my calculator

Answer 45

what kind do you have?

Answer 46

casio fx 300ms

Answer 47

on yours it is "shift" upper left

Answer 48

i got 89.84

Answer 49

hit "shift" then "tan" that will give you \[tan^{-1}\]

Answer 50

you forgot the decimal point! make sure to hit .375

Answer 51

oh sorry

Answer 52

20.55

Answer 53

try again. "shift" 'tan" " .375

Answer 54

yes. 20.556

Answer 55

then it would be 20.6?

Answer 56

yes if you round to the tenths you got it!

Answer 57

so 20.7?

Answer 58

now its 20

Answer 59

if you round to the ones place it is 21

Answer 60

thanks for your helo :)