Answer:
75%
Step-by-step explanation:
increased height = 2.1 - 1.2 = 0.9 m
Increased percentage = (0.9/1.2)*100
= 75%
Answer:
3
Step-by-step explanation:
I'm confused as to what you are asking but if it's multiple choice on what the first line means than the answer is 3
Answer:
212.9 days
Step-by-step explanation:
The bacteria culture initial population is 25 represented by Po and the population after t days is represented by P(t).
Using growth formula:
P(t) = Po ( 1 + r)^t where r is rate in percent and t is time in days
r = 1.28%, P(t) = 375, and Po = 25
substituting this values into the equation above yields
375 = 25 (1 + 1.28/100)^t
375÷25 = ( 1 + 0.0128)^t
15 = (1.0128)^t
take logarithm of both sides
log 15 = log (1.0128)^t remember the law log a^b = b log a
applying the same law gives
log 15 = t log 1.0128
divide both side by log 1.0128
log 15 ÷ log 1.0128 = t log 1.0128 ÷ log 1.0128
t = 212.9 days
Replace 'y' with -3x+4
The variable 'x' cancels out, leaving the True statement 4/3 = 4/3
This means that the 2 equations are identical regardless of what x and y are.
Answer: System is consistent and dependent, there are an infinite number of solutions.