Find an explicit formula for the following sequence, an which starts with a1=−1. −1,12,−13,14,−15,…

What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? explain your reasoning.

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.

Question 1 of 10 2 points different groups of 50 graduates of an engineering school were asked the starting annual salary for their first engineering job after graduation, and the sampling variability was low. if the average salary of one of the groups was $65,000, which of these is least likely to be the average salary of another of the groups? o a. $64,000 o b. $65,000 o c. $67,000 o d. $54,000