Can somebody please explain why y = -x is equivalent to r sin(θ) = r cos(θ) instead of r sin(θ) = - r cos(θ) ? Thank you.

What is the opportunity cost (in civilian output) of a defense buildup that raises military spending from 4.0 to 4.3 percent of an $18 trillion economy? instructions: enter your response rounded to the nearest whole number?

The lee family is looking to buy a house in one of two suburban areas just outside of a major city, and air quality is a top priority for them. overall air quality is calculated by taking measures in 100 locations within each suburb and then calculating a measure of central tendency. in one suburb, there is a major bus station that creates very poor air quality at its location but has no impact in the surrounding parts of the suburb. in this situation, which measure of overall suburb air quality would be most useful?

The sec has historically raised questions regarding the independence of firms that derive a significant portion of their total revenues from one audit client or group of clients because the sec staff believes this situation causes cpa firms to