Find m< x (Type the number answer)

x=74.73°

Step-by-step explanation:

Law of cosines

In a general triangle, the law of cosines relates the lengths of the sides of the triangle to the cosine of one of its angles.

The law of cosine is expressed as:

Where a and b are the lengths of two sides of the triangle, x is the angle contained between them, and c is the other side length.

If all side lengths are known, we can solve the above equation for the angle x:

From the image, we must select a and b as the sides adjacent to angle x in any order. Thus a=17, b=22, c=24. Substituting:

Operating:

Using a scientific calculator:

x=74.73°

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

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d is the answer

step-by-step explanation: