Question

Find cos 9 years ago

Answer 1

@callielovesyhuu

Answer 2

thats a 90 right

Answer 3

yes

Answer 4

4/5

Answer 5

those are 1 of the answers right ?

Answer 6

yes it was. thank you!!!!

Answer 7

np

Answer 8

is that it ? ?

Answer 9

i have more i may ask

Answer 10

kk

Answer 11

Find the measure of angle D. Round to the nearest tenth.

Answer 12

Use Pythagorean theorem to calculate HF,

\(x^2=sqrt(sqrt(8)^2+sqrt(8)^2)=8+8=16\)
so x=4.
Again use Pythagorean theorem to calculate y
\(y^2=sqrt(3^2+x^2)=sqrt(3^2+4^2)=sqrt(25)=5\)
BUT
\(cos \angle FEH =adjacent/hypotenuse = 3/y=? \) (answer is NOT 4/5).

Answer 13

whats the answer then

Answer 14

my choices are
A. 3/4
B. 4/5
C. Square root of 8/3
D. 4/3

Answer 15

Enough hint for the first problem.
You will find the answer if you had taken the time to read what I wrote.

Hint for the second problem (which you should have made a new post).
use the rule of cosines.

Answer 16

Sorry, my bad. The first problem was for cosine of angle FHE, so 4/5 is correct.