Find the slope as a decimal number of the line that passes through the points (21,10) and (-19,0)?

1/4

Step-by-step explanation:

We can find the slope given two points by using

m = (y2-y1)/(x2-x1)

    = (0-10)/(-19-21)

    = -10/(-40)

   = 10/40

    = 1/4

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)

step-by-step explanation:

the true statements are:

r = set of real numbers

n = set of natural numbers, 1,2,

w = n u{0} = {0,1,}