Describe the relationship between the circumference and the diameter of a circle. a. pi times half the diameter equals the circumference. b. pi times the diameter equals the circumference. c. the circumference divided by half the radius equals pi .d. the circumference times the diameter equals pi.

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.

Write a short paragraph of about 150-300 words. explain how the physical environment can limit human activities.

Read the following quote from the nature conservancy, “the 3 billion people who live in poverty around the world will be hardest hit by climate change. the poor are more dependent on natural resources and have less of an ability to adapt to a changing climate. diseases, declining crop yields, and natural disasters are just a few of the impacts of climate change that could devastate the world’s most vulnerable communities.” from this quote, what group of people is most vulnerable to climate change? those who depend on industrialized nations people who are able to adapt to changing conditions people living in central america people who are living in poverty