The number of bacteria in a certain population increases according to a continuous exponential growth model, with a growth rate parameter of 2.1% per hour. How many hours does it take for the size of the sample population to double?

do you have the measurements?

point a is the center of the circle that passes through points e, f, and g and the center of the circle that passes through points x, y, and z.

answer: c.  

step-by-step explanation:

mixtures containing substances that get attracted to magnet can be separated using a magnet. we can separate iron from a mixture of sand and iron, as only iron attracts to the magnet.