Answer:
D
Step-by-step explanation:
Recall that the area of a triangle is given by:

In this case, the base is <em>x</em> and the height is <em>y</em>. Hence:

We can write the following ratios:

Solve for <em>x</em> and <em>y</em>:

Substitute:

And simplify. Hence:

In conclusion, our answer is D.
Answer:

Step-by-step explanation:
we know that
The area of rectangle is equal to

The coordinates of vertices are

using a graphing tool
Plot the coordinates of rectangle to better understand the problem
see the attached figure
the formula to calculate the distance between two points is equal to

we have that

<em>Find out the distance AD</em>
we have

substitute in the formula



<em>Find out the distance AB</em>
we have

substitute in the formula



The area of rectangle is equal to


Answer:
0
Step-by-step explanation:
3^2 is 9, and (-3)^2 is 9.
so, 9-9=0
Answer:
2.66
Step-by-step explanation: