An office building has two elevators. one elevator starts out on the 4th floor, 35 feet above the ground, as it's defending at a rate of 2.2 feet per second. the other elevator starts out at ground level and is rising at a rate of 1.7 feet per second. write a system of equations to represent the situation

The system of equations to represent the situation are and

Step-by-step explanation:

Given:

An office building has two elevators.

One elevator starts out on the 4th floor, 35 feet above the ground, as it's defending at a rate of 2.2 feet per second.

The other elevator starts out at ground level and is rising at a rate of 1.7 feet per second.

Now, to write a system of equations to represent the situation.

Let the number of seconds for which the elevator is descending be

So, the descended feet is feet for

As given the elevator is at 4th floor, 35 feet above ground.

Thus, from 35 feet the elevator has descended feet for .

Now, let the final position of elevator be

So, it would be:

Now, as given the other elevator starts out at ground level and is rising at a rate of 1.7 feet per second.

So, the elevator has been raised feet for  

As the elevator starts out at ground level.

Thus,

Therefore, the system of equations to represent the situation are and

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.

y/x of point b= y/x of point a

step-by-step explanation:

(i got the same question, this was the correct answer.)