Approximate the real zeros to the nearest tenth: -x^3 + x + 4 -1.6,1.6 -2,1 -2.6,2.6 -1.6,2.6

Find the measure of angle c in the following triangle.

Ablue whale traveled 3112 miles in 214hours. what was the whale's rate in yards per hour? (1 mile = 1,760 yards)

4. jake needs to score in the top 10% in order to earn a physical fitness certificate. the class mean is 78 and the standard deviation is 5.5. what raw score does he need? z value for top 10% =1.282 how do i get the z value? what is the equation for this? raw score =mean+z*sd = 78+1.282*5.5 = 85.051