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frutty [35]
2 years ago
12

Can somebody help me please

Mathematics
2 answers:
attashe74 [19]2 years ago
3 0
I think B is the answer
valina [46]2 years ago
3 0
The answer should be C or at least that’s what I think
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A culture started with 4,000 bacteria. After 2 hours it grew to 4400 bacteria. Predict how many bacteria will be present after 1
Art [367]
 <span>idk why they want the dratted "k" . it is so simple w/o it ! 
in the form y = ab^x, a = 4000, b = 4400/4000 = 1.1, x = t/2 
N = 4000*1.1^(13/2) = 7432 <------ 
----------------- 
now you won't be satisfied with simplicity, so 
4400 = 4000e^2k 
e^2k = 1.1 
k = ln 1.1/2 = .0477 to 4 dp 
N(13) = 4000e^(13*.0477) = 7436 <------ 

note that apart from a roundabout way, you get a less accurate ans !</span>
5 0
3 years ago
Read 2 more answers
Jessica's piggy bank has a total of $13.25 in dollar bills and quarters. If there are a total of 29 dollar
Licemer1 [7]

Answer: $8 21 quarters

Step-by-step explanation:

20 quarters is $5 plus another is $5.25

8 dollars is $8 plus the $5.25 = $13.25

Have a nice day, and if you could be so kind as to give me a brainliest

3 0
2 years ago
CAN SOMEONE HELP EXPLAIN THIS TO ME !!!!
Jet001 [13]
The quadratic formula is above.

You want each equation in standard form: ax^2 + bx + c = 0
I begin each problem by defining variables.
For instance 3. Is in standard form. X^2 -2x - 3 = 0. a = 1, b = -2, c = -3

Now use quadratic formula: x = [- b + or - sqrt(b^2 - 4ac)]\2a

8 0
3 years ago
Please help me thank you
Olenka [21]

Step-by-step explanation:

6 \sqrt{2}

this is the answer

4 0
2 years ago
What the answer to this
Blababa [14]
I am pretty sure the answer is A because the graph is a cubic function
5 0
3 years ago
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