F(x)= -x^2+19 find f(3)

Step-by-step explanation:

We are given the function:

We want to find f(3), therefore we must substitute 3 in for x.

Solve according to PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction. Evaluate the exponent.

Add 19 to -9.

For the function f(x)=-x²+19, f(3)= 10

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:

c

step-by-step explanation: