The equation for a trapezoid is A = a+b all over 2 times h
So, you would simply substitute.
A=15
B=12
H=8
15+12/2 (8)=
27/2 (8)=
13.5 (8)=
108.
Answer:
There is no answer to this question.
Step-by-step explanation:
First of all the variable 
is not in the equation.
Second of all, y=mx+b has only variables, it can only be simplified to 
Answer:
To calculate the volume of a cylinder, you need to know its height and the area of its base. Because a cylinder is a flat-top figure (a solid with two congruent, parallel bases), the base can be either the top or bottom
Step-by-step explanation:
Answer:
(1/2, -1)
Step-by-step explanation:
The midpoint is the average of the end points:
M = (R + S)/2 = ((4, -7) + (-3, 5))/2 = ((4-3)/2, (-7+5)/2) = (1/2, -2/2)
M = (1/2, -1)
