Answer:
Never
Step-by-step explanation:
Pi is a an irrational number. Multiply any rational number by pi and you will never get a rational number. The answer is never
The answer in decimal format is 15.7
Or 7 radical 5
Answer:
x=1.46497
Step-by-step explanation:
Answer:
Step-by-step explanation:
y=x²+4x+4
or y=(x+2)²
or y=(x+2)²+0
vertex Is (-2,0)
Answer:

Time for bacteria count reaching 8019: t = 2.543 hours
Step-by-step explanation:
To find the composite function N(T(t)), we just need to use the value of T(t) for each T in the function N(T). So we have that:




Now, to find the time when the bacteria count reaches 8019, we just need to use N(T(t)) = 8019 and then find the value of t:


Solving this quadratic equation, we have that t = 2.543 hours, so that is the time needed to the bacteria count reaching 8019.