Find the slope of the line through pair of points. (10,11),(20,-9)

m= -2

Step-by-step explanation:

(x1,y1)=(10,11)

(x2,y2)=(20,−9)

Use the slope formula:

m=

y2−y1

x2−x1

=

−9−11

20−10

=

−20

10

=−2

m=−2

i can answer this question sweetie!

step-by-step explanation:

b is 38 degrees.

a is 52 degrees.

this is because if b is 38 and a is 14 degrees more than b than 38+14=52 and 52+38=90 degrees. hope this .