1. the stopping distance, d, in feet of a car is directly proportional to
the square of its speed, v.

a- write the direct variation equation for the scenario above.

b- when there is a car accident, it is important to figure out how
fast the cars involved were traveling. using the direct variation
equation above, solve for speed.

A: The variation equation is

B: The speed is

Step-by-step explanation:

Part A:

The stopping distance is directly proportional to the square of the speed. Mathematically this means the distance is equal to the square of speed multiplied by a proportionality constant , thus

Part B:

Once we have the equation relating and , then it is easy to solve for using that equation.

Rearranging the equation we got in Part A and solving for we get:

amount of oatypop that contains the prize = 40%

amount   of oatypop which doesn't contain the prize = (100-40)=60%

probability that hannah will win a prize

    = s +f s +f f s+ff   f s+ff f f s+ infinity.where f= failure,s= success

=   or 60%

probability that hannah only has to buy 3 or less boxes before getting a prize= (s) and ( f s) and (ff s) and (f f f s)

        = = 87.04 %  

step-by-step explanation: