Determine if the equations are parallel, perpendicular, or neither. y = -3x + 4 and y = 1/3x − 6

Acircle has the equation (x-2)^2 +y^2 =5. what are the coordinates of the circle's center?

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.