Answer:

Step-by-step explanation:
Given



Required
Solve for A
Simply substitute 18 for b and 30 for h



Hence:
The area is

Answer:
-6-b
Step-by-step explanation:
Answer:
f = 1
Step-by-step explanation:
Use the method of cross- multiplication
=
⇒ ad = bc, thus
20f = 5(f + 3) ← distribute
20f = 5f + 15 ( subtract 5f from both sides )
15f = 15 ( divide both sides by 15 )
f = 1
0 is the answer 79.83-54.91-24.92=0
The equation for working out the slope of a linear line is:
, where x and y are the coordinate pairs.
So just pick two of the purple dots on the graph and fill in the equation.
I'll pick the dot that's (-4, 1) and (4, -7).
Now I just do
, which is just
when simplified.