The Roots of 6 corn plants grew to -3.54 feet, -2 4/5, -3.86 feet, -4 1/8, -4.25 feet, and -3 2/5 feet. How many corn plants had roots between 3 and 4 feet deep?

3 corn plants

Step-by-step explanation:

Here, we want to select the number of corn plants that had roots between 3 and 4 feet dee

To select this number, we need to look at the roots which growth feet are a fraction lying between 3 and 4

These roots from the question are;

3.45 , 3.86 , 3 2/5

So three corn plants had roots between 3 and 4 feet deep

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