What is the least number of weights that can be used on a set of scales to weigh any whole number of kilograms from 1 to 40? Also, please explain your answer in full sentences. Thank you.

Which statement most accurately describe why the division property of exponents does not apply to the expression (-8)^2/(-3)^4

(least common multiples) the answer that i had in the 1st step was lcm of airline tickets sold=72. idk if that even matters but just in case. ! three co-workers are busy selling airline tickets over the phone. in an 8-hour day, charles can sell 8 airline tickets, ann can sell 9 airline tickets, and michelle can sell 6 airline tickets. step 2 of 2: what is the smallest number of 8-hour days needed for each of them to achieve the same number of sales? it takes charles . it takes . it takes .

Sketch one cycle if the cosine function y=2cos2theta