Question

PLz Help!!
Find x. Round to the nearest tenth.

Answer 1

\[\frac{ \sin 87 }{ x }=\frac{ \sin 37 }{ 21 }\]

can you finish it

Answer 2

i don't think i'm doing it right

Answer 3

becuase i keep getting a really big number

Answer 4

cross multiply what do you get?

Answer 5

cross multiply 87 and 21?

Answer 6

@surdawi

Answer 7

write it down, you are getting it

Answer 8

ok i got 1827

Answer 9

i wrote it down

Answer 10

wrong
its sin(87)*21= sin(37)*x

Answer 11

oh ok

Answer 12

i got -17.25817457

Answer 13

how?

Answer 14

i put in sin(87)*21

Answer 15

what did you get for that

Answer 16

-17.25817457

Answer 17

can you plug it in to the calc one more time

Answer 18

ok

Answer 19

i keep getting the same thing

Answer 20

ok plug in sin (87) what do you get?

Answer 21

-.8218178366

Answer 22

your calculator is set to radian not degrees; can you switch it to degrees

Answer 23

i don't know how too...if it helps at all i have a TI-84 Plus

Answer 24

let me check

Answer 25

press Mode then you should have the option

Answer 26

ok

Answer 27

i got 20.97122023

Answer 28

20.97122023 = sin(37) * x
what are you going to do to get x alone

Answer 29

ummm....divide? i'm not sure

Answer 30

divide is correct
what do you get?

Answer 31

ok do i need to divide the 20 number and the sin or sin and x?

Answer 32

you need the x alone so which one?

Answer 33

the sin and x?

Answer 34

yes

Answer 35

ok how would i do that if i don't know what x is?

Answer 36

i'm not sur ehow i'm suppose to do it

Answer 37

divide by sin(37)

Answer 38

the 20 number divided my sin(37)?

Answer 39

yes

Answer 40

i got 34.84662134 is that correct?

Answer 41

yes but Round to the nearest tenth.

Answer 42

35?

Answer 43

no
34._

Answer 44

ok, then mutilply that by sin(37)?

Answer 45

i got 20.46171079

Answer 46

no, 34.84662134 is correct but you need nearest tenth
so 34.8

Answer 47

ok so now i got 20.94316281

Answer 48

@surdawi

Answer 49

where did you get the 20.94316281?

Answer 50

i mulitplyed 34.8 and sin(37)

Answer 51

why?