Question

did i set this up right....


is it cos 90 = 18/x
i keep getting wrong answer.

Answer 1

Solve for x. Round your answer to 2 decimal places.

14.38
10.83
22.54
29.91

Answer 2

cos 90?

cos 90 is actually = 0.

i think you're trying to find

cos 53
which is actually 18/x :)

Answer 3

yes you set up the angle wrong.

Answer 4

@hartnn thank you! i was so confused bc it did not make sense!

Answer 5

welcome ^_^

Answer 6

@hartnn so you would set it up as

cos 53 = 18 / x

Answer 7

yes, correct

Answer 8

find x

Answer 9

to get x by itself you would do
multiply both sides by 1/18 to get x by itself?
because by doing that i get a small decimal

Answer 10

yes

you'd get
x = 18/ cos 53

and use cos 53 = 0.602

Answer 11

ok thanks! :)