Answer:
(-20 - 10) / (-12 - (-10))
-30 / -2
30/2
now the midpoint would be half the two points
30/2 ÷ 2/2 = 15/1
So add 15 to -20 (or subtract 15 from 10) for the y, and add 1 to -12 (or subtract 1 from -10) for the x.
Multiply the diameter by pi to get circumference. The answer is 27.004
Solve the following system using elimination:
{x - 2 y = -23 | (equation 1)
{x - y = 7 | (equation 2)
Subtract equation 1 from equation 2:
{x - 2 y = -23 | (equation 1)
{0 x+y = 30 | (equation 2)
Add 2 × (equation 2) to equation 1:
{x+0 y = 37 | (equation 1)
{0 x+y = 30 | (equation 2)
Collect results:
Answer: {x = 37 , y = 30
Answer: The diameter of Eduardo's hair is greater than Orla's hair by 0.007 cm.
Step-by-step explanation:
Given: The diameter of Orla's hair strand = 0.005 cm
The diameter of Eduardo's hair strand = 0.012 cm
Clearly , 
The difference between the diameters=
Thus, the diameter of Eduardo's hair is greater than Orla's hair by 0.007 cm.
