Answer:

Step-by-step explanation:
we know that
A
right triangle has two equal legs
Let
x-----> the length side of the leg of the triangle
y------> the length side of the hypotenuse


so

in this problem we have

substitute the value of y and solve for x



Answer:
Area is 113.097
Step-by-step explanation:
A. 58 students
B. 200 students
I couldn’t really understand the question but i did 4squared + 3r(1) - 7(1)squared and i got -33 + 3r
2v=3-7
2v=-4 divide both sides
v=-2