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OLEGan [10]
3 years ago
10

The growth of Mycobacterium tuberculosis bacteria can be modeled by the function N ( t ) = a e ^ { 0.166t }, where N is the numb

er of cells after t hours and a is the number of cells when t = 0.
a.) At 1:00 P.M. there are 30 M. tuberculosis bacteria in a sample. Write a function that gives the number of bacteria after 1:00 P.M.

b.)Use a graphing calculator to graph the function in part(a).

C)Describe how to find the number of cells in the sample at 3:45 P.M


I NEED ALL 3 PARTS:))
Mathematics
2 answers:
FrozenT [24]3 years ago
6 0

Answer:

A) y= 30e^(0.116t)

C) 2.75

Step-by-step explanation:

A) You just plug in 30 for a in the original equation

B) Self explanatory

C) The difference between 1 pm and 3:45 pm is equivalent to 2:45 minutes. In this case 45/60(45 mins/hour) is equal to 3/4 which really is .75. The 2 should be the hours so the answer is 2.75

Svetradugi [14.3K]3 years ago
3 0
B) use q graphing calculator to graph the function
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Determine whetherfis a function from the set of all bitstrings to the set of integers if
ipn [44]

Answer:

a) Not a function

b) It is a function

c) It is a function

Step-by-step explanation:

a) f(S) is not completly well defined, becuase if the bistring has multiple zeros, you need to pick one and there is not specified method in how you would do so. Another reason for which f is not well defined as a function is that for a bistring with only 1's, f is not defined because there is no zero.

b) This is a function. f(S) returns a concrete and unique integer number for each bistring S. If the bistring has only zeros, the f(S) = 0.

c) This is well defined as a function. It compensates for the failures of the first definition:

- If multiple zeros appears in S, you pick the first one, so there is one possible value for f(S)

-If no zeros appear, f is still well defined because it takes the value 0, as specified in the definition.

8 0
3 years ago
1. What is the growth/ decay rate for this exponential function?
Firdavs [7]

Answer:

1. The growth rate is 2

2. The sample is losing half its mass, so the decay factor is 1/2 or 0.5

Step-by-step explanation:

The growth and decay factor in an exponential function is the number that is being multiplied to the power of x

  • It is a growth rate when that number is greater than 1
  • It is a decay rate when the number is less than 1
  • If it's 1 then it's not growing or decaying
  • If it's 0 you will have an answer of 0
8 0
2 years ago
Which of the following values of x makes this equation true? (-4x – 3) - (7x - 3) = 22​
Katena32 [7]

Answer:

Step-by-step explanation:

Here you go mate

Step 1

(-4x-3)-(7x-3) =22​  Equation

Step 2

(-4x-3)-(7x-3) =22​  Simplify

-11x=22

Step 3

-11x=22  Divide

Answer

x=-2

5 0
3 years ago
Can someone help me this question?
Vilka [71]

Answer:

The answer is B.

Step-by-step explanation:

5 0
3 years ago
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2/3 times 3 times 2/7
fomenos

Answer:

4/7

Step-by-step explanation:

2/7 x 3= 6/7. 6/7× 2/3=4/7

7 0
2 years ago
Read 2 more answers
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