Step-by-step explanation:
we have to keep 5 rather than x
the answer is 36
For each 4 hour interval 800 bacteria grow. at 12 midnight there will be 16,400 bacteria.
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Answer: Choice C 
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The open circle means we do not include the endpoint, hence the use of a greater than symbol. If we were to include the endpoint, then we'd have greater than or equal to. We can rule out choice B due to this reasoning.
The ray pointing to the right indicates we are talking about x values larger than 5, so we can rule out choice A and conclude the answer is C.
Side note: The notation
is saying "x is a real number"
Answer: A≈530.93in²
Step-by-step explanation: I hope this helps!
Answer:
x=100º
Step-by-step explanation:
The two angles are vertical angles, so they are congruent.