Daria wants to conduct a study on how animal behavior is affected when they are dressed in tiny hats. She takes 40 white mice and divides them into two groups of 20 through random assignment. Each mouse in the first group of 20 wears no hat, while in the second group, each wears a small hat. What could one call the first group of mice

What is the value of the expression below? (81^2)^1/8

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%

The length of a rectangle is x times the square root of 100. the width is one-half y more than three-halves x. given that the area of the rectangle is 125 cm2, which equation could represent the rectangle in terms of x and y? a) 5xy − 15x = 125 b) 5xy + 15x = 125 c) 15x2 − 5xy = 125 d) 15x2 + 5xy = 125