Arectangle has an area of 30 square meters reminder of 34 meters what are the dimensions of the rectangle

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%

Prove sin2a + cos2a - 1 / sin2a + cos2a + 1 = 1 - tana / 1 + cota

Consider the linear function that is represented by the equation y= 4x+5