Samuel has $60 in a savings account. Each week he deposits $12 in the account. Which expression is equivalent to the total amount in the account after x weeks? select all that apply. a. 60x + 12
b. 60 + 12x
c. 12(5 - x)
d. 12x + 60
e. 12(5 + x)

B, D, E

Step-by-step explanation:

As Samuel adds money to his account we are multiplying the times he adds with 12 therefore x multiplied by 12 will give us the total he added + 60 the original number.

As of D the position does not matter because B and D are both the same.

For E if we distribute or multiply 12 into the brackets we get the same statement as that of B and D.

A does not work because he is adding 12 dollars into the account everytime and not 60 dollars, C doesn't work because we would be subtracting the amount he is adding so we would be removing the money from the bank.

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.