Question

HELPPPPPPPPPPP MEDALLLLLL



Describe the vector as an ordered pair. Round the coordinates to the nearest tenth. The diagram is not to scale.

a. <-58.1, 50.5>
b. <-102, 117.4>
c. <-117.4, 102>
d. <-50.5, 58.1>

Answer 1

where, where is it, where's the medal that needs help

Answer 2

haha very funny

Answer 3

can someone please help?

Answer 4

Drawing a right triangle might help you

Answer 5

How?

Answer 6

Are you familiar with the trigonometric functions?

Answer 7

Oh I see and kind of

Answer 8

Then you should be able to solve it by yourself now I suppose?

Answer 9

is it y/x? I'm not exactly sure how to do it.

Answer 10

cos 41deg = y/77

Answer 11

So from there would I try yo find y? \[41 = y/77\]

Answer 12

No it's cos 41deg not just 41

Answer 13

\[\cos41^\circ=\dfrac y{77}\]

Answer 14

Oh okay! And the cosine of 41 would be -0.987 correct? (according to calculator)

Answer 15

Nope, your calculator is set to radian

Answer 16

I don't know how to do it then:/

Answer 17

What brand is your calculator?

Answer 18

I don't know it's not like a t-84 or anything it's just a regular calculator

Answer 19

The exact model number please

Answer 20

Never mind, click the "mode" button and set the mode to "degrees"

Answer 21

umm it's an activa calculator and that isn't working

Answer 22

can you just tell me what the cos 41 = ?@kc_kennylau

Answer 23

You can calculate it by entering cos(41*pi/180) if it's set to radian mode, and it's 0.75470958

Answer 24

Okay thank you! and I would round that too 0.8? so the equation is \[0.8 = y/77\]

Answer 25

You can't round it to so less significant figures...
And yes it'd be like that

Answer 26

So what would the equation be than?

Answer 27

0.755 = y/77

Answer 28

y = 101.9?

Answer 29

rounded to 102

Answer 30

I'm afraid that that's not the case.

Answer 31

okay i must've done something wrong i divided 77 by 0.755

Answer 32

exactly

Answer 33

so i get = y/102

Answer 34

What?!

Answer 35

IDK. I am not the brightest in math as you can tell..

Answer 36

What the hell do you mean by "= y/102"

Answer 37

Okay so what i did was divide 0.755 by 77 and i got 101.9 i rounded that to 102

Answer 38

But you should have multiplied

Answer 39

WHAT ? I am so confused. It's not your fault it's mine, please explain

Answer 40

Well, it's my fault

Answer 41

So we have 0.755 = y/77

Answer 42

Multiply both sides by 77 and you'll get 0.755 * 77 = y/77 * 77

Answer 43

Get it?

Answer 44

Yes I do, give me a second to attempt to work it out

Answer 45

how would i do y=77 * 77?

Answer 46

No it's y/77*77 that is y divided by 77 and multiplied by 77 which is basically the same thing as y

Answer 47

OH so y would be equal to 58.1

\[y = 58.1\]

Answer 48

exactly

Answer 49

So that leaves only one answer choice D

Answer 50

Yep, but do you want to know why it's D?

Answer 51

Yea sure

Answer 52

Do you know how to find x?

Answer 53

\[\cos 77 = x/41 ?\]

Answer 54

Wow you're learning so fast :D

Answer 55

Lol only because I have a great teacher! Thank you soo much

Answer 56

I'm flattered :D

Answer 57

Well it's true! Helped me step by step and I appreciate it! Have a nice day :)

Answer 58

Thanks and you too!