In the year 1999, the surface elevation of Lake Powell was 3884 feet above sea level. In the year 2002, the surface elevation of Lake Powell was 3650.9 feet above sea level. Interpret the rate of change in this situation. The surface elevation of Lake Powell is decreasing at a rate of

The manufacturer of a new product developed the following expression to predict the monthly profit, in thousands of dollars, from sales of the productwhen it is sold at a unit price of x dollars.-0.5x^2 + 22x - 224what is represented by the zero(s) of the expression? a.the profit when the unit price is equal to 0b.the unit price(s) when the profit is equal to 0c.the profit when the unit price is greatestd.the unit price(s) when profit is greatest

Maria found the least common multiple of 6 and 15. her work is shown below. multiples of 6: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, . . multiples of 15: 15, 30, 45, 60, . . the least common multiple is 60. what is maria's error?

If f(x)=3 over x+2 - square root x-3 then f(7)=