The volume of a fish tank is 20 cubic feet. if the density is 0.2 (fish over feet cubed), how many fish are in the tank?
2
4
50
100

B. 4

Step-by-step explanation:

We have been given that the volume of a fish tank is 20 cubic feet. The density is 0.2 (fish over feet cubed). We are asked to find the number of fish in the tank.

We will use density formula to solve our given problem.

Substituting our given values in above formula we will get,

Therefore, there are 4 fish in the tank and option B is the correct choice.

x = ± 6i

step-by-step explanation:

x^2 = -36

take the square root of each side

sqrt(x^2) = sqrt(-36)

we know sqrt(ab) = sqrt(a) sqrt(b)

x = ±sqrt(36) sqrt(-1)

we know that sqrt (-1) = i

x = ± 6i

you can't solve x because it is 2 linear equation and you only have one equation