Will mark brainliest 25 points If any would like to help me out :) Ebony’s bank balance first reached $400 on Day 4. The last day her balance was $400 was Day 8.

(a) Determine. Explain how you determined these amounts.

(b) Estimate. Explain how you determined these amounts.

(c) Jade said that the amount of money Ebony took out of her account each day

i would need to see the dot plot : )

i believe the correct answer is b.

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.

40 x 50 = 2000

step-by-step explanation: