4a) The vertices of a triangle are P(-7, -4) Q(-7, -8) and R(3, -3). What are the coordinates of P' after a reflection over y=x? Please type your answer as
coordinates (x, y) with no spaces.

P' (-4 , -7)

Step-by-step explanation:

reflection over y=x, (x,y) -> (y,x)

256π units²   (answer b)

step-by-step explanation:

the formula for the surface area of a sphere of radius r

is             a = 4πr²

and so, if r = 8 units, then the surface area is:

a = 4π(8 units)² = 256π units²   (answer b)

yo answer should be 6 if im not mistaken

step-by-step explanation: