Answer:
the blue line is at the 7 and the blue line is at -1
Mike since he specializes in that type of art better than the others.
Answer
E=x/2
Step-by-step explanation:
E would represent Ervin's points and x would represent Larry's points which would be divided by 2, for example if Larry scored 24 we would divide 24 by 2 and Ervin's score would be 12.
E= 24/2
E=12
Answer:
see explanation
Step-by-step explanation:
Using the addition identity for sine
sin(x + y) = sinxcosy - cosxsiny
Consider the left side
cos²(45 - A) - sin²(45 - A)
cos²(45 - A) = 1 - sin²(45 - A), thus
1 - sin²(45 - A) - sin²(45 - A)
= 1 - 2sin²(45 - A) ← expand sin(45 - A)
= 1 - 2(sin45cosA - cos45sinA)²
= 1 - 2(cosA - sinA)²
= 1 - 2(cos²A - sinAcosA + sin²A)
= 1 - cos²A + 2sinAcosA - sin²A
= sin²A + 2sinAcosA - sin²A
= 2sinAcosA
= sin2A = right side ⇒ verified