Exponential growth means that the rate of increase is proportional to the present amount. As more and more dandelions spread their seeds, the patch grows faster and faster, since each new flower contributes more new flowers to the population. Same for decay. As the amount decaying shrinks, there is less and less to contribute to the disintegration. Radioactivity is a common instance, but maybe not quite so available in everyday life.

The height of a flare fired from the deck of a ship in distress can be modeled by h(t)= -2(8t^2-52t-28), where h is the height of the flare above water and t is the time in seconds. a. find the time it takes the flare to hit the water.

What is the next step in the given proof? choose the most logical approach. a. statement: m 1 + m 2 + 2(m 3) = 180° reason: angle addition b. statement: m 1 + m 3 = m 2 + m 3 reason: transitive property of equality c. statement: m 1 = m 2 reason: subtraction property of equality d. statement: m 1 + m 2 = m 2 + m 3 reason: substitution property of equality e. statement: 2(m 1) = m 2 + m 3 reason: substitution property of equality

Which geometric principle is used to justify the construction below?