How do I find the value of x?

Only cosine include both hypotenuse and adjacent. We need both of them because those are 2 side that have numbers/letters.

So cos(28) = 11/x

Multiply by x

Then you'll get xcos(28) = 11

Do oposite cosine and you'll get

x = 11*opposite cos(28)

opposite cosine means cos^-1

thats approx. equal to 12.46 units

hdjd

step-by-step explanation:

hello, there is a new name in town and that's the human spider!

answer: d.) the total number of protons and neutrons is 15

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your friendly neighborhood human spider! .