<span>Use the Pythagorean theorem for the right triangle

where

is the hypotenuse of the triangle;

and

are the other two sides.
So,

</span>
Answer:
Step-by-step explanation:
The amplitude is half of the range.
a=(maximum-minimum)/2, in this case
a=(2-(-4))/2
a=6/2
a=3
6x/6y=6z
X/?Y=1/2Z
36=6
1hole take 1 man x 6 days
1/2 hole needs 1 man with 3 days