Well, in order to prove the Pythagorean theorem, every triangle you are using has to have one right angle (90-degree angle), and the side opposite to it will be called the hypothenuse. The remaining two triangles will be acute angles (<90 degrees), and the sides opposite to them are called sides/catheti.
ANSWER
7 units left.
EXPLANATION
The parent function is

The transformation

shifts the graph of the function, a units to the left.
Therefore the transformation that describes how to translate the graph of
y=|x| to obtain y=|x+7| is 7 units left.
The third choice is correct
To solve the question we shall use the formula for the range given by:
Horizontal range, R=[v²sin 2θ]/g
plugging in our values we get:
500=[160²×sin 2θ]/10
5000=160²×sin 2θ
0.1953=sin 2θ
thus:
arcsin 0.1953=2θ
11.263=2θ
hence:
θ=5.6315°~5.63
B.t<span>he polygon is equiangular but not equilateral. this should be correct </span>
Answer is 3 because he should know how many typed of paint….