Suppose the sample space for a probability experiment has 70 elements. If items from the sample space are selected without replacement, how many different ways can you select all of the items? Remember that "without replacement" means that the items are not returned to the sample space after they are chosen. Write your answer in factorial notation.

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 33 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30 ∘c on monday, but decreased at a constant rate in the next 33 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

When x = 3 and y = 5, by how much does the value of 3x2 – 2y exceed the value of 2x2 – 3y ?

If the discriminant if a quadratic equation is 4 which statement describes the roots?