Let's formulate an equation first. For exponential growth, we follow the formula. b = 800, r - 0.027. Hence,
y = 800(1+0.027)^t
Then, at t = 21, y will be determined
y = 800 (1+0.027)^21
y = 1399.81 = 1400
Thus, the amount of bacteria present after 21 hours is 1400.
When hav epoins (x1,y1) and (x2,y2)
slope is (y2-y1)/(x2-x1)
(-3,4) and (5,-1)
slope=(-1-4)/(5-(-3))=-5/(5+3)=-5/8
slope=-5/8
According to a calculator, this is the answer: 0.1923076923. Hope this helped?
Answer:
Correct choice is 
Step-by-step explanation:
1. If 
then you can find the inverse 
2. If 
then
3. Hence,
3x (4x^4-5x)
add all of the numbers with a x to get
12x^4
and 12x^4=
20736x
