5.22875816993
Hope this helps
Answer:
A: 180°, semi circle
Step-by-step explanation:
We are told that MK and HL are the diameters.
By Inspection, it is clear that MHK will be a semi circle.
The angle of that chord will be 180° since sum of angles on a straight line is 180°.
Answer is option A
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.
Answer:
15
Step-by-step explanation:
5 divided by 1/3 is the same as if you flip the denominator meaning 5 x 3 which is 15