(-3,7)(9,5)
midpoint formula : (x1 + x2)/2 , (y1 + y1)/2
(-3 + 9)/2 , (7 + 5)/2 = (6/2, 12/2) = (3,6) <==
Answer:
x-5<21
Step-by-step explanation:
Answer: A: the possible income from producing an additional item.
Step-by-step explanation: The actual definition of marginal cost is the cost added by producing one additional unit of a product of service.
90° becuase 60+30 = 90 and 90+90=180
Answer:
and 
Step-by-step explanation:
when you solve for r in the given equation, you need to apply the square root property, which gives positive and negative answers (both should therefore be considered):

then you need to include these two possible solutions:
and 