The second one is a perfect square trinomial
X^2+16x+64
Answer:
A intersection B = ( elements which are common in both)
= ( 2,4,7,19)
A union B = ( all the elements which are either in A or in B).
= ( 2, 4, 7 , 13, 14, 19, 20 , 3, 5, 6, 10,11, 12 , 15,17 , 18 , 19 )
<span>the circumstances of a circle with a diameter of 30 centimeters
</span>The answer is 94.2 centimeters
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Hope it helps c:</span>
