A farmer added fertilizer to half of a crop, and then three days later added the same kind and amount of fertilizer to the other half of the crop. Explain why this is not a valid experiment. only needs to be two or more sentences.

He needs to have the same crop in order to be vaild. Otherwise, it would be valid.

Step-by-step explanation:

The Option C shows the y-coordinate of the Point C: 7

The Point C is (-2,7)

Step-by-step explanation:

The area of a triangle can be calculated with this formula:

Where "b" is the base and "h" is the height.

We know that the segment AB, of 5 units long, is on the line , which is a horizontal line.

The point C is on the line , which is vertical.

Then we can say that:

Substituting the area and the lenght of the base into the formula and solving for "h", we get:

Then, the height (or the segment BC) of the triangle (Observe the figure attached) is 5 units long.

Therefore, the point C is: (-2,7)

And the y-coordinate of the point C is: 7