Answer:

Step-by-step explanation:
To find the area of a triangle, we can use the formula of:

This formula comes from the area of a rectangle, because a triangle is half a rectangle.
Answer:

Step-by-step explanation:
Hello There!
Once again we need to isolate the variable using inverse operations
to get rid of the -8.2 we add 8.2 to each side
-8.2+8.2 cancels out
-9.7+8.2=-1.5
now we have
-1.2z>-1.5
now we wan to get rid of the -1.2
to do so we want to divide each side by -1.2

Remember we have to flip the inequality sign because we're dividing by a negative number
we're left with
z<1.25
Answer: 
Step-by-step explanation:
Move all terms to one side.

Use the Quadratic Formula.
, 
1.) 168 inches
2.) 96 inches