Can someone help me please, thanks

B. x ≥ 2

Explanation:

hey there,

< 54-10x ≤ 20+7x

This is kind of simplified as if it was an equation with "=". First, put all the "x"s to one side.

54-10x-7x ≤ 20

Put all the regular numbers to the other side.

-10x-7x ≤ 20-54

Continue simplifying:

-17x ≤ -34

When finishing up this to try to find "x", you are going to change the sign to the opposite (since here it is greater than or equal to, you're going to change it to less than or equal to). The sign is going to change because the numbers being dragged over are negative. This is just a rule you have to follow. So:

x ≥ 2 is your final answer. >

Hope this helped! Feel free to ask anything else.

(Also for future reference, you can add your question in the question box instead of into the comments.)

x + 4/7

step-by-step explanation:

use cymath

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.