-4.75=z/2

PLEASE HELP

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Amajor grocery store chain is trying to cut down on waste. currently, they get peaches from two different distributors, whole fruits and green grocer. out of a two large shipments, the manager randomly selects items from both suppliers and counts the number of items that are not sell-able due to bruising, disease or other problems. she then makes a confidence interval. is there a significant difference in the quality of the peaches between the two distributors? 95% ci for pw-pg: (0.064, 0.156)

What is the least common multiple of 8, 12, 7