A) y= -3.5x + 57.5B) y= 3.5x + 57.5C) y= -3.5x + 32.5D) y= -3x + 57.5
2 answers:
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Answer:
Solution : 8i
Step-by-step explanation:
We can use the trivial identities cos(π / 2) = 0, and sin(π / 2) = 1 to solve this problem. Let's substitute,
=
And of course 1i = i, so we have the expression 8(0 + i ). Distributing the " 8, " 8( 0 ) = 0, and 8(i) = 8i, making the fourth answer the correct solution.