Find the distance between M(-1,-10) and P(-12,-3) * Round to the nearest tenth.

13.0 units

Step-by-step explanation:

To find the distance between two points, we use the formula

d = sqrt( (y2-y1)^2+ (x2-x1)^2)

   sqrt((-3--10)^2 + (-12--1)^2)

   sqrt( (-3+10)^2 + (-12+1)^2)

   sqrt( (7^2  + (-11)^2)

  sqrt( 49+121)

  sqrt( 170)

13.038

Rounding to the nearest tenth

13.0

256π units²   (answer b)

step-by-step explanation:

the formula for the surface area of a sphere of radius r

is             a = 4πr²

and so, if r = 8 units, then the surface area is:

a = 4π(8 units)² = 256π units²   (answer b)