21 2. The dust usually sticks ton TV iscréent because, dust
A. Falls on the TV screen
B. Particles are metallic conductors
c. is attracted by magnets in the TV screen
D. Is attracted
by
static
charges
on the TV screen.

a

Step-by-step explanation:

falls on the TV screen

option 1 is correct.

step-by-step explanation:

y varies inversely with x and constant of variation is 4

the equation will be:

y = k/x

where k =4 so,

y = 4/x

if we put values of x of option 1 in the above equation and find values of y

y = 4/-2 => y =-2

y = 4/-1 => y = -4

y = 4/1 => y = 4

y = 4/2 => y =2

so, all the values of x and y are correct.

if we put values of x given in other options and find value of y we cannot find whole table satisfying the equation.

hence option 1 is correct.

answer:   14

step-by-step explanation:          

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