Question

Help me solve this!

Answer 1

@jim_thompson5910

Answer 2

when k = 1, what is the value of 7/18 + k/3 ?

Answer 3

13pi/18?

Answer 4

yes, I took out the pi's temporarily but you have the right idea

Answer 5

you'll do the same for other positive whole numbers for k until you get to 2pi (you stop if you go over 2pi)

Answer 6

How do I know when i've reached 2pi? (that's probably a silly question but I don't know xD)

Answer 7

2pi = 6.28 approximately

evaluate each of the fractions you get and see if they are smaller than 6.28

Answer 8

so 37pi/18 would be too large already?

Answer 9

37pi/18 = 6.45771823237901

so yes it's too big

Answer 10

It didn't like this answer D:

Answer 11

it says at the top "round your answers to 3 decimal places where appropriate"

so maybe they want them in decimal form?

Answer 12

hm ok. Should the 7pi/18 be in that box too, or no?

Answer 13

the decimal form of it, yes

Answer 14

hmm wait, if k = -1, then

7/18 + k/3 = 1/18

so pi/18 is part of the solution set as well

pi/18 = 0.17453 is in the interval [0,2pi)

Answer 15

ah, ok, i'll try that. Because it didn't like that last answer either even in decimal.

Answer 16

It still doesn't like it D: idk how many more tries I have. If any.

Answer 17

so you tried the exact form? with pi/18 included?

Answer 18

ai, I don't have any more tries actually -.- No, I didn't :/

Answer 19

well i tried the decimal form with pi/18 included

Answer 20

I see. You either would do everything in decimal form or in exact fraction form (keeping pi intact)

Answer 21

Yeah, i'm thinking maybe they wanted it in exact fraction form. Ah, well.