The water level of a lake fell by 1 and one half in. during a 1 and two thirds -week-long dry spell. simplify the complex fraction below to find the average rate at which the water level changed every week. startfraction negative 1 and one half over 1 and two thirds endfraction

The means and mean absolute deviations of the individual times of members on two 4x400-meter relay track teams are shown in the table below. means and mean absolute deviations of individual times of members of 4x400-meter relay track teams team a team b mean 59.32 s 59.1 s mean absolute deviation 1.5 s 245 what percent of team b's mean absolute deviation is the difference in the means? 9% 15% 25% 65%

Write a polynomial function f of least degree that has rational coefficients, a leading coefficient of 1, and the given zeros. 3, 4+2i, 1+(sqrt)7 the answer is supposed to be: f(x)=x(^5)-13x(^4)+60x(^3)-82x(^2)- 144x+360 what am i doing wrong?

What is the ratio of the length of an object in yards to the length of the same object in miles?