(-2,4) (0,3) distance between?

2.236

Step-by-step explanation:

You need to use the distance formula.

d= square root of (x2-x1)^2=(y2-y1)^2

the distance is (-2,1)

Step-by-step explanation:

19.side- angle- side

20. angle- side- angle

step-by-step explanation:

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c