Answer:
36
square units.
Step-by-step explanation:
The triangle shown is an equilateral triangle. This means all the side lengths are 12. The formula for the area of an equilateral triangle is
(
).
Plug in 12 for a.
144
/4
= 36
Step 1. Factor x^2 - 2x - 15
(x - 5)(x + 3)/x^2 + 4x + 3
Step 2. Factor x^2 + 4x + 3
(x - 5)(x + 3)/(x + 1)(x + 3)
Step 3. Cancel x + 3
x - 5/x + 1
The answer is 0.04 its that easy