Find the value of x, given cos 0 = 0.4 and explain if possible

Step-by-step explanation:

For each right-angled triangle:

Because

we have an equation

multiplying both sides by x, we get

dividing both sides by 0.4 and

using calculator, we divide 12 by 0.4

and finally x=30

the reason why your question keeps getting deleted because this is not a school related question : )

i will answer your question though.

i never tried church's