D is a notation for differential. There is a d2 in your formula because in the numerator there are two differentials. The formula is thus the second derivative of a function with respect to two variables.
Midpoint = (x1+x2)/2 and (y1+y2)/2 = so just solving for
x gives (4+(-2))/2 = 1
not asked for but the y value is (3+6)/2 = 9/2 = 4.5 so the ordered pair is (1, 4.5)
Answer:
-86.07
Step-by-step explanation:
Theres a negative 86 and a 7 over 100.
Answer:

Step-by-step explanation:
hope that was the answer you were looking for :/