Here is the distribution of blood types for randomly chosen black Americans:
0
А
B
Blood
Type:
AB
Probability:
0.49
0.27
0.20
?
What is the probability of type AB blood?

Area of figure = 42 square units

Step-by-step explanation:

You divide it into triangles and use 1/2 bh. Or better, you notice that you can use one enclosing rectangle and subtract four triangles. Much easier.

Area of rectangle diagonal (-5,-4) to (2,4) is 7×8 = 56 square units.

Area of outside triangle height 2 base 3 = 3 square units. There are two of them. The other is 4 square units.

Area of figure = 56 - 6 - 8 = 42 square units