Answer:
122.5
Step-by-step explanation:
Let the student normal score be 100
In the beginning score increased by 40%
Hence score at the beginning =100+40 = 140%
Now before end score decreased by 25%
Decrease = 25% of 140 = 35
Hence score at the end of month = 140-35 = 105
Average score for the month
= Total of scores of end and beginning month /2
=
Option A is correct.
If we evaluate the function at , i.e. at the beginning, we have
with each minute, you multiply the current number of cell by 2, so they double every minute.
Option B is incorrect, because if the number of cells increases by 2 every minute, the function would be
Option C is incorrect, because after one minute (i.e. when x=1) we have
cells, so 75 is not the number of cells after one minute
Option D is incorrect in both the initial value and the behaviour of the function
Answer Choice A.
Answer Choice B.
Answer Choice C.
<u><em>Answer Choice D. </em></u>
The correct answer is <u><em>D. 7√5/5</em></u>
Hope This Helps!!!
Answers:
25 = 5*5 which is the same as 25 = 5^2
100 = 2*2*5*5 which is the same as 100 = 2^2*5^2
16 = 2*2*2*2 which is the same as 16 = 2^4
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Explanation:
To find the prime factorization of 25, we divide by prime numbers. We see that 25/2 = 12.5 isn't a whole number, and neither is 25/3 = 8.33 (approx). But 25/5 = 5 is a whole number. The result is a prime number so we can stop here. This shows that 25 = 5*5 = 5^2
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We'll do the same for 100 as well. Start with dividing over 2
100/2 = 50
50/2 = 25
we can't do 25/2 as mentioned earlier, but we can say 25/5 = 5
So basically 100 = 2*2*25 = 2*2*5*5 = 2^2*5^2
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The same will happen with 16 as well. We divide by 2 until we arrive at a prime number result
16/2 = 8
8/2 = 4
4/2 = 2
We have three 2's as denominators and that last result 2 is included in the set of prime factors as well to say 16 = 2*2*2*2 = 2^4
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The factor tree for each is shown below. For something like 100, there are a few ways to draw out the tree. The same applies for 16 as well.
