Question

Please help with one question!?!

Answer 1

help please @tcarroll010

Answer 2

\[t = \frac{ 3 }{ \pi }\times \cos^{-1} \left( \frac{ h }{ 7 } \right)\]

Answer 3

Now, just plug in your various values of the "h" and you'll get your "t".

Answer 4

ok.. so thats for A

Answer 5

Do 1, then 3, then 5

Answer 6

where are 1,3, and 5 coming from

Answer 7

wait so the equation is the answer for a. now i have to plug in for b?

Answer 8

You are plugging in those values of "h". From part "b".

Answer 9

oh ok! but the equation is A right?

Answer 10

oh, yes!

Answer 11

We got it by dividing both sides by 7, taking the inverse cos, multiplying by 3, then dividing by pi.

Answer 12

Yes! Very good!

Answer 13

now do i leave it like this ^^^ or what?

Answer 14

It depends on what your teacher is looking for in format, but you probably have to simplify those. You will have to set your calculator to "radians" when you do the inverse cos.

Answer 15

im not really sure how to do that?

Answer 16

I got 1.36, 1.07, 0.74

You can use the calculator in your computer if you have Windows. Put it to scientific and hit the radians button.

Answer 17

ok im gonna try

Answer 18

After you hit "radians", you will hit INV (inverse) and cos-1

Answer 19

oh i got it!

Answer 20

ok what about C.?

Answer 21

Similar to "b" except you use -1, -3, and -5 instead of the positives like you used in "b".

Answer 22

ohhh

Answer 23

cool! thank you!

Answer 24

uw! Good luck to you in all of your studies and thx for the recognition! @lala2

Answer 25

thanks!:)

Answer 26

Always nice working with you as you are nice always! @lala2

Answer 27

ahh thank you! I really apperciate your help! you help me understand things very well! when i am done figuring these out can you tell me if im correct?

Answer 28

ok, np!

Answer 29

ok im having trouble putting this into the calculator

Answer 30

That's ok, take your time.

Answer 31

first i put radians.. then INV and cos^-1 then i multiply it by -1 divided by 7

Answer 32

are these the right steps

Answer 33

First, set your calculator to "radians". Then, put in, for the first one, 1/7, get the INV Cos-1, then multiply by 3, then divide by pi.

Answer 34

Are you using the Windows calculator?

Answer 35

1.36?

Answer 36

1.36 is the first one, you're doing well.

Answer 37

yes i am.. and that is correct so now i use -1

Answer 38

1.64?

Answer 39

is this correct?

Answer 40

for b: Using 1, 3, 5 -> 1.36311, 1.07705, 0.74026

for c: Using -1, -3, -5 -> 1.63689, 1.9229, 2.2597

Answer 41

ok i got it! Thhannnkkkks!

Answer 42

I might be able to get you a graph if you want to hold on.

Answer 43

no you dont have to do all of that

Answer 44

i think i understand! I really do apperciate it!:)

Answer 45

could i tag you in one more?

Answer 46

but after my lunch, I'm starved!

Answer 47

oh ok!