Afish tank has a base area of 45 cm 2 and is filled with water to a depth of 12 c,. if the height of the tank is a 25 cm, how much water will be needed to fill the tank to the brim?

Solve for x, y, and z. show all steps.

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

For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.