Answer:
i'd say it is either a or d, but i'd try a. 40 miles first.
Step-by-step explanation:
i hope this helps, and update me
Answer:
525 x 1,050
A = 551,250 m²
Step-by-step explanation:
Let 'L' be the length parallel to the river and 'S' be the length of each of the other two sides.
The length of the three sides is given by:

The area of the rectangular plot is given by:

The value of 'S' for which the area's derivate is zero, yields the maximum total area:

Solving for 'L':

The largest area enclosed is given by dimension of 525 m x 1,050 and is:

Since we have to solve the given formula for h(height) so, the correct option is (a)
Formula is y = mx + b
Answer y = - 2/3x - 3