1. explain why 0.07/2.8 haa the same answer as 7/280.

2. why does dividing 8 by a decimal less than 1 give a quotient greater than 8?

Explained.

Step-by-step explanation:  The explanations are as follows :

(1) We have after multiplying both numerator and denominator by 100 that

Thus, both the fractions have the same meaning.

(2) Let us divide 8 by a decimal less than one, then we must multiply both numerator and denominator by a power of 10, which lesds to a quotient greater than 8. Suppose the decimal is 0.2, then we have

Thus, explained.

answer: 12

step-by-step explanation:

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.