Complete the following statement. The radical equation 2 + 2x - 3
V + 7 has a solution set z =
and an extraneous root =

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

Explain step-by-step how to simplify -5(2x – 3y + 6z – 10).

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable