Which statement correctly describes a quadratic equation with a discriminant equal to zero (b^2 - 4ac = 0)?
it has no real solutions.
it has one real solution.
it has two real solutions.
it has three real solutions.

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

Drag the tiles to the correct boxes to complete the pairs. not all tiles will be used. the heights of the girls in an advanced swimming course are 55, 60, 59, 52, 65, 66, 62, and 65 inches. match the measures of this data with their values.

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?