Question

Math Help !

Answer 1

@phi @terenzreignz

Answer 2

@Luis_Rivera @Hero

Answer 3

Please help me someone

Answer 4

Use the formula

Answer 5

Ok, then what ?

Answer 6

@Hero

Answer 7

Then you get the answer

Answer 8

Lol okay. is i 40.1 @Hero

Answer 9

@hero

Answer 10

Sorry, but I didn't do this problem :P

Answer 11

I just know all you have to do is just use the formula :P

Answer 12

OMG ! That helps a lot.

Answer 13

AM I CORRECT ?

Answer 14

It LOOKS right :)

Answer 15

No i want to be 100% sure

Answer 16

You should try showing your work...that helps

Answer 17

I used the calculator to get that, but i need someone to tell me if im right & 100 sure

Answer 18

WHAT ARE YOU TYPING @surjithayer

Answer 19

the answer

Answer 20

is it 40.1 thats all im asking ?

Answer 21

\[\cos B=\frac{ c ^{2}+a ^{2}-b^{2} }{ 2ca }\]
\[\cos B=\frac{ 17^{2}+11^{2}-12^{2} }{ 2\times17\times11 }\]
\[\cos B=\frac{ 289+121-144 }{ 374 }\]
\[\cos B=\frac{ 266 }{ 408 }=\frac{ 133 }{ 204 }\]
\[B=\cos ^{-1}\frac{ 133 }{ 204 }\]
From log tables or we can find the measure of B.

Answer 22

is it 40.1

Answer 23

@surjithayer

Answer 24

according to @surjithayer, it's not 40.1, but the answer is in the 40's

Answer 25

45.3 ?

Answer 26

NO

Answer 27

i got 49.9

Answer 28

It's 49 point something for sure.

Answer 29

so its right

Answer 30

If @surjithayer work is correct, then it should be.

Answer 31

But I got 49.31

Answer 32

according to mine i got a

Answer 33

@Hero

Answer 34

I see...so you were just guessing answer choices the whole time?

Answer 35

No !

Answer 36

I still have yet to see any of your calculations