What procedure can be used to solve the equation StartFraction x Over 19.3 EndFraction = 38.6, and what is the solution?

Given f(x) = 17-x^2what is the average rate of change in f(x) over the interval [1, 5]?

Imogene invested $8,000 in a bank account that pays 8 percent simple interest at the end of each year. her friend invested the same amount in stocks where the growth of the investment is represented as 2,000 times the square root of 2 less than the time lapsed in years. if y1 and y2 represent the amount earned in dollars and t is the time lapsed in years, which system of equations correctly represents the situation?

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?