Answer:
Both answers are C!!!
Step-by-step explanation:
Im so lucky, I guessed and got them both right on the usatestpreptest.
answer 1: petri dish A will have a density of 19.6
answer 2: Petri dish A by 3.3 bacteria/mm
For this case what you must do is to determine the value of r of the given equation:
A = pi * r ^ 2.
Clearing the value of r we have:
r = root (A / pi)
Note that r has two roots:
r1: = + root (A / pi)
r2: = - root (A / pi)
In this case we must ignore the negative root.
Answer:
The formula to find r is
r = root (A / pi)
Answer:
360
Step-by-step explanation:
-20x-18=20x18=360
Answer:
8 / 5
Step-by-step explanation:
-8 / -5 = 8 * -1 / 5 * -1 = 8 / 5
Thank, 5 star, and brainliest if helpful