A snowball flies through the air with a speed of 15 m/s. It spends 5 seconds
in the air before hitting the ground. Based on the information given can the
snowball have reached the enemy fort 50 meters away?
OA) Yes, it can have reached the fort.
OB) No, it will need a speed of 20 meters per second to reach the fort.
OC) No, it will need a speed of 25 meters per second to reach the fort.
OD No, it will need a speed of 50 meters per second to reach the fort.

an electric circuit

when a device is used in a circuit in which the voltage is 81 v, the current flowing through the device is 3 a. what is the resistance of the device?

a. 27 ω

b. 40.5 a

c. 243 ω

d. 243 a

the correct answer is a. 27

where’s the list ? the question is incomplete

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 .