Math post-test! (will mark brainiest)
the length of a rectangular room is 8.9 m and its width is 5.2 m. find the area of the room.

79.21 m2

46.28 m2

28.2 m2

27.04 m2

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.

where are the choices?

a

step-by-step explanation: