A certain type of bacteria doubles every 30 minutes. If the sample started with 2000 bacteria, how many bacteria will be in the sample after 6 hours? You can use the exponential function ()=2000⋅2 .

Name the most appropriate metric unit for each measurement

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12