The Smith family drove at an average speed of 72 miles per hour. They drove for 8 hours. How far did the Smith family drive?

576 miles

Step-by-step explanation:

If they drove for 8 hours and they drove at 72 miles per hour the equation would be 72 * 8

72 * 8 = 576 miles

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