Write an equation for the line tangent to the circle whose equation is (x - 2)2 + y2 = 20 at the point (4,-4).

Find the domain of the following expression: 1/(√x)-2

Me n o w. i need t h i s. 10 points

Reduce fractions expressing probability to lowest terms. in 3,000 repetitions of an experiment, a random event occurred in 500 cases. the expected probability of this event is?