Law of cosines: a2 = b2 + c2 – 2bccos(a) what is the measure of y to the nearest whole degree?

58° 64° 68° 73°

The correct option is second, i.e., 64 degree.

Explanation:

From the given figure it is noticed that the length of three sides are 17,12 and 16.

The law of cosine is defined as,

Where a,b,c are length of sides and A is the interior angle on vertex A.

We have to find the measure of Y.

Therefore the second option 64 degree is correct.

hope this !

step-by-step explanation:

d = distance between moon and sun, which in this problem is the hypotenuse of a right triangle.  

the distance y is the side opposite to angle x in the right triangle.   use the definition of the sine function from basic trigonometry.

sin(x) = y/d ⇒

d = y/sin(x)

i dont know sorry

step-by-step explanation: