Question

can someone help me they put trig in my algebra 2 class i really need help

Answer 1

what is your question?

Answer 2

actually i have a bunch of questions lolo i dont know what any of this is

Answer 3

ok i'll help you out with a few, but I won't do all of them

Answer 4

in triangle ABC, Angle C is a right angle. Find the remaining sides and angles. Round your answer to the nearest 10th a = 3 c =19

Answer 5

let's find b first

a^2 + b^2 = c^2 ... start with the pythagorean theorem

3^2 + b^2 = 19^2

9 + b^2 = 361

keep going to solve for b

Answer 6

umm im not sure what to do next

Answer 7

b^2 = 361 - 9

b^2 = 352

b = ???

Answer 8

subract 19^2 from 3^2?

Answer 9

you mean 3^2 from 19^2

Answer 10

o yes i got 352

Answer 11

then take the square root of that to get b

Answer 12

idk how to do that

Answer 13

do you have a calc?

Answer 14

yes

Answer 15

\[\sqrt{352} = 18.76166304 ?????\]

Answer 16

round that to the nearest tenth

Answer 17

im not sure what nearest 10th is i never learned that

Answer 18

you never learned rounding?

Answer 19

no sir

Answer 20

that's quite odd, but ok


18.76166304

the tenth place is the 7

the digit after that is a 6 (greater than 5), so we drop everything after the 7 and bump the 7 up to 8



so after rounding 18.76166304 to the nearest tenth, we get 18.8