8. If a man with mass 70 kg, standing still, throws an
object with mass 5 kg at 50 m/s, what will be the recoil
velocity of the man, assuming he is standing on a
frictionless surface?
a. -3.6 m/s
b. om/s
c. 3.6 m/s

0.55x745.7j and a calculator

we have been given a quadratic function and we need to restrict the domain such that it becomes a one to one function.

we know that vertex of this quadratic function occurs at (5,2).

further, we know that range of this function is .

if we restrict the domain of this function to either or , it will become one to one function.

let us know find its inverse.

upon interchanging x and y, we get:

let us now solve this function for y.

hence, the inverse function would be if we restrict the domain of original function to and the inverse function would be if we restrict the domain to .

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2