Answer: -4
Step-by-step explanation:
Answer:
The area is 42 area units.
Step-by-step explanation:
The area of a function f(x) on an interval [a,b] is given by:

Applying to this question:

Then





The area is 42 area units.
Answer:
70
Step-by-step explanation:
both sides of the triangle are 70 because they equal 140 plus 40 is 180