Which equation describes a line parallel to y = -4x+3

Use a graphing calculator to solve the equation - 3 cos t = 1 in the interval from 0 ≤ theta ≤ 2 π round to the nearest hundredth.

Identify the type of chemical reaction involved in each action.

Which of the following is not a challenge to instituting sound global environmental policies? a. most changes are inexpensive and easy to implement. b. elected leaders who support unpopular environmental issues often are not re-elected. c. economic considerations outweigh environmental ones in many societies. d. there is no way to enforce international environmental agreements.