Can someone plez help me I’m a freshman and this is homework

units is the area of the triangle

Skills needed: Combining Like Terms, Triangle Area

Step-by-step explanation:

1) First, let's understand two important concepts:

---> The area of a triangle:

is the area

The base is one of the sides of the triangle, and the height is perpendicular to the base and connects to a vertex usually opposite of the base.

Perpendicular means to intersect at a right angle (that square thing that is drawn into the diagram signifies a right angle).

---> Combining Like Exponent Terms

Let's say we have: and

If we are multiplying, we are doing

Example:

Think about it: 2 to the 4th power is 16, and 2 squared is 4. When multiplying those together you get 16 * 4  = 64. The method above yields the same answer.

2) Now, let's apply these two concepts to the problem shown. We are given a base () and a height perpendicular to the base ().

---> Let's substitute in for the formula:

Let's combine like terms now:

can be combined and multiplied as they are all constant numbers.

Now let's combine the exponent parts

We can split into two groups for the two different variables ()

---> can be combined (remember ) -->

---> can be combined -->

So we have: as the answer.

You can take out the multiplication signs:

(When you have unlike terms, you do not need to separate with multiplication signs)

it's d.

step-by-step explanation:

because: -1(4x + 1y) +2 (1x-3y) distribute each number into the parenthesis.

then you would get: -4x - 1y + 2x -6y combine like terms

and get: 2x -7y

hope my answer has you if not then i'm sorry.

1 1/5

step-by-step explanation: