Dalton added 3402 +4950 to get 8352 estimates the sum by rounding the addends to the nearest hundreds is dalton sum reasonably

Step-by-step explanation:

To round to the nearest number we have to follow certain rules:

In this case, 3402 is rounded to 3400, and 4950 is rounded to 5000, if we sum these rounded numbers we have 3400 + 5000 = 8400.

No, Dalton has 8352 as a result, which is rounded to 8400. This means that Dalton's operation is reasonable. Actually, 8352 is the exact result of the sum.

answer: give more info

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.