Need ! explain and show your work. a biologist is studying the growth of a particular species of algae. she writes the following equation to show the radius of the algae, f(d), in mm, after d days: f(d) = 7(1.06)d part a: when the biologist concluded her study, the radius of the algae was approximately 13.29 mm. what is a reasonable domain to plot the growth function? part b: what does the y-intercept of the graph of the function f(d) represent? part c: what is the average rate of change of the function f(d) from d = 4 to d = 11, and what does it represent?

a) you can graph the equation to see the value of d required to make f(d) be 13.29. it is about 11. then the domain of the function might reasonably be specified as the interval [0, 11]

b) the y-intercept is f(0) = 7, the radius of the algae when the biologist began her study.

c) the average rate of change of a function over the interval [a, b] is (f(b)-f(a))/(b-a). for this function, it is about 0.636 mm/day. this represents the average change in radius (mm) of the algae each day of the last week of the study.

correct answers below:

57.09 minus 7.0435 equals

step-by-step explanation:

just subtrach them both and u get the answer of 50.0465