Eight out of 21 instruments in the band are woodwinds. If there are 63 instruments in the band, how many more are not woodwinds
1 answer:
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So remember that the distance formula is .
1.
Distance between (4,-5) and (4,-2) is 3 units.
2.
Distance between (1,1) and (-1,4) is √13 (or 3.61 rounded to the hundreths) units.
we know, that the angle formed by an arc at the center of the circle is two times the angle formed by same arc on any point on the circumference,
So,
=》
hence, correct answer is B.