If p (q-r) x^2 + q (r-p) x + r (p-q) has equal roots, then, 2/q=?

a) p + 1/r c) p+r

b) 1/p + r d) 1/p + 1/r

How many committees or three people are possible from a group of 12

Clare was solving an equation, but when she checked her answer she saw her solution was incorrect. She knows she made a mistake, but she can't find it.

Two numbers with the product of 1 are called what?

The average age of person at a party if 17 with a mean absolute deviation of 2. Based on the statement which of the following statements must be true? a) At the party, no one is 17.

Given the sequence 2, 6, 18, 54, ..., which expression shown would give the fifteenth term? 215 2·315 2·314

What is one third of twenty four?

Here are 10 values of a variable x. find the variance using the formula u=x-20 18.9 20.7 19.3 20.1 21.3 19.6 20.5 20.9 18.8 20.8

A chemistry teacher needs to mix a 20% salt solution with a 80% salt solution to make 25 qt of a 44% salt solution. How many quarts of each solution should the teacher mix to get the desired result?

What is the reference angle of 120 degrees

2) If Jenny wants to make 80 cups of punch, how many cups of each ingredient will she need?