Distance = sqrt (x2 - x1)^2 + (y2 - y1)^2
(0,3).....x1 = 0 and y1 = 3
(4,1)....x2 = 4 and y2 = 1
now we sub and solve
d = sqrt (4 - 0)^2 + 1 - 3)^2
d = sqrt (4^2) + (-2^2)
d = sqrt (16 + 4)
d = sqrt 20
d = 4.472 <==
Let x represent the number.
The sum of 3 and a number: x + 3
One-half the sum of 3 and a number: (x + 3)/2
5 is equal to one-half the sum of 3 and a number: 5 = (x + 3)/2
Answer:
834
Step-by-step explanation:
419 = -1 + (419-1) * 2
-1+418*2 = 834
