Why is it necessary that the solar concentrators used by solar power plants be able to move throughout the day? to avoid rain damage to track the sun as it moves across the sky to direct sunlight to different parts of the power plant to change the focus area of the incoming radiatio

Firms use marginal analysis to determine prices by a) changing prices in accordance with information from retailers. b) using comparisons with strong competitors to position prices accordingly. c) examining the effect on revenue of small changes to the price of one item. d) trying to minimize production costs by using better and more efficient methods.

Read the scenario below and answer the question that follows. bailey is plagued with sleep problems at least a couple of times a week. she often feels tired at work and doesn't do her best work because she is "just so tired." according to the lesson, it can be said that adults have some of the same problems with sleep that bailey does. a. few b. many c. no d. all

Me with my drivers and you! ** will mark you brainliest and give you 15 free points if answered correctly ** when you're upset, you're up to times as likely to get into a crash. a. 2 b. 4 c. 8 d. 10