What is the distance between the points (5, 1) and (-3, -5)?

2 √5
2 √10
10
4 √5

10 units

Step-by-step explanation:

The distance  from point (a,b) and (c,d) is given by formula below:-

Therefore, the distance between the points (5, 1) and (-3, -5) will be :

Hence, the distance between the points (5, 1) and (-3, -5) = 10 units

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)

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)