Question

What is the distance between `(-2,1,14)` and `(-12,2,-5)`?

Answer 1

See a solution process below:

Explanation:

The formula for calculating the distance between two points is:

`d = sqrt((color(red)(x_2) - color(blue)(x_1))^2 + (color(red)(y_2) - color(blue)(y_1))^2 + (color(red)(z_2) - color(blue)(z_1))^2)`

Substituting the values from the points in the problem gives:

`d = sqrt((color(red)(-12) - color(blue)(-2))^2 + (color(red)(2) - color(blue)(1))^2 + (color(red)(-5) - color(blue)(14))^2)`

`d = sqrt((color(red)(-12) + color(blue)(2))^2 + (color(red)(2) - color(blue)(1))^2 + (color(red)(-5) - color(blue)(14))^2)`

`d = sqrt((-10)^2 + 1^2 + (-19)^2)`

`d = sqrt(100 + 1 + 361)`

`d = sqrt(462)`

`d = 21.494` rounded to the nearest thousandth.