I just need help with the top question

Step-by-step explanation:

Since the triangle is a right angled triangle we can use Pythagoras theorem to find the missing side x

Using Pythagoras theorem we have

a² = b² + c²

where

a is the hypotenuse

We have

Find the square root of both sides

That's

We have the final answer as

Hope this helps you

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0

point a is the center of the circle that passes through points e, f, and g and the center of the circle that passes through points x, y, and z.