p varies directly as (x² + y² + z²). When x = 1, y = 2, z = 3, then p = 70. What is the value of p when x = -1, y = 1, z=5?

Two dice each numbered from 1 to 6 are thrown together. Let A and B…

Two dice each numbered from 1 to 6 are thrown together. Let A and B…

An urn contains one black ball and one green ball. A second urn contains one…

An urn contains one black ball and one green ball. A second urn contains one…

What is the most probable number of successes in 10 trials with probability of success…