For each sequence, determine whether its arithmetic , geometric or neither. write an explicit or recursive formula for each sequence . you must show your work toearn credit for each problem. 1, 3, 6, 10, 15 4, 13/3, 14/3, 5 16/3

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?

Find the x-intercepts of the parabola withvertex (1,1) and y-intercept (0,-3).write your answer in this form: (x1,if necessary, round to the nearest hundredth.

What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15