Answer:
5
Step-by-step explanation:
Answer:
a)

b) 0.09
Step-by-step explanation:
We are given the following in the question:

where B(t) gives the brightness of the star at time t, where t is measured in days.
a) rate of change of the brightness after t days.

b) rate of increase after one day.
We put t = 1

The rate of increase after 1 day is 0.09
Having a look at a protractor, it shows 90. That is 1/2 pi RAD.
Answer:
15 grams of each
Step-by-step explanation: