Answer:
where's the graph? I can't see it
P(7,6), Q(1,6), R(4,2)
We have PQ parallel to the x axis. We'll call that the base,
b = 7 - 1 = 6
The altitude is then the y difference h = 6 - 2 = 4
The area is 
Answer: 12 square units
In general we can use the shoelace formula for the area of any polygon given coordinates. We write the points like this:
(7,6), (1,6), (4,2)
(1,6), (4,2), (7,6)
The area is then half the absolute value of the sum of the cross products:

How it's evaluated:
(1) w - k = -7 - -5
(2) -17 - -5= = -17 + (-15)
(3) -17 + (-15) = -2
First step is change W and K and change it into it's correct number.
Second step is change the subtraction sign to it's opposite.
Third step is subtract -17 and (-15) which would give you -2
Answer:
<em>Simplifying</em>
Simplifying
21 + x = 70
Solving
21 + x = 70
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-21' to each side of the equation.
21 + -21 + x = 70 + -21
Combine like terms: 21 + -21 = 0
0 + x = 70 + -21
x = 70 + -21
Combine like terms: 70 + -21 = 49
x = 49
Simplifying
x = 49
Answer: -40/90 I think
Step-by-step explanation:
5x8= 40
6x15=90