Answer:
90 divided by 2
Step-by-step explanation:
you're going to do 90 divided by 2 and then you get 45
Part A: After 9 days the radius of algae was approximately 12.81 mm. The reasonable domain to point is (0,9).
Part B: The 9 on the y-intercept represents the amount of algae the experiment started with.
Part C: (12.81-10.12)/7=0.38
Point-slope form: y - y₁ = m(x - x₁)
m is the slope, (x₁ , y₁) is your point
So your point-slope equation is:
m = -4 (x₁ , y₁) = (4 , -9)
y - y₁ = m(x - x₁)
y + 9 = -4(x - 4)
Answer:
16
Step-by-step explanation: