Point c1-3.6, -3.4) divides ab in the ratio 2: 3. if the coordinates of point a are (-2, -1), what are the coordinates of point b?
a. (-7.4.-5.2)
o b. (-6, -7)
c. (-5, -4)
od. (-8, 4)

correct answers below:

so what is the problem what are they asking you to solve

step-by-step explanation:

so what is the problem what are they asking you to solve

a = 3.14

b = 18

c = 18/5 or 3.6 or 3 3/5

step-by-step explanation:

(b) 240

step-by-step explanation:

first, we use the pythagorean formula using the given side lengths to find x. then we use x to find the side lengths. then we add the side lengths to find the perimeter.

pythagorean theorem formula:

a^2 + b^2 = c^2

(x - 20)^2 + (x - 40)^2 = x^2

x^2 - 40x + 400 + x^2 - 80x + 1600 = x^2

x^2 -120x + 2000 = 0

(x - 100)(x - 20) = 0

x - 100 = 0 or x - 20 = 0

x = 100 or x = 20

we see that the solution x = 20 must be discarded because it will give a negative side length and a side length of 0. the only valid solution is x = 100.

perimeter = sum of the lengths of the sides

perimeter = x + x - 20 + x - 40

perimeter = 3x - 60

replace x with 100.

perimeter = 3(100) - 60

perimeter = 300 - 60

perimeter = 240