Evaluate the following expression using the values given: find x^3 - 2y^2 - 3x^3 + z^4 if x = 3, y = 5, and z = -3

What is the standard form of -5x^2+2x^4-11+x^3+3x

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%

Describe the symmetry of the figure. identify lines of symmetry, if any. find the angle and the order of any rotational symmetry.