Find the value of the expression 3x-5y when x=-2 and y=4

-14

Step-by-step explanation:

3x-5y when x=-2; y=4

=3(-2) - 5.4

= -6 -20

= -26

PLS VOTE ME 5 STAR

- 26

Step-by-step explanation:

3x - 5y ( substitute x = - 2 and y = 4 into the expression )

= 3(- 2) - 5(4)

= - 6 - 20

= - 26

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.

alright well the answers to your question is

2xy/9 hope this have a nice day : )

step-by-step explanation: