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Basile [38]
3 years ago
12

Please answer this correctly

Mathematics
2 answers:
Virty [35]3 years ago
4 0

Answer:

It would decrease by 9.

Step-by-step explanation:

52 is the original mean or the initial mean.

43 is the final mean.  

52-43 = 9

<em><u>So 9 is the difference. </u></em>

Hope this helped!

nataly862011 [7]3 years ago
3 0

Answer:

30

Step-by-step explanation:

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storchak [24]

Answer:

y = ( x − 3 ) 2 + ( − 4 )  with vertex at  ( 3 , − 4 )

Step-by-step explanation:

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3 years ago
1) A chemist has 250 ml of a 5% acid solution. How much water should be added to this solution to reduce it to a 3% solution.
Firlakuza [10]

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153.1ml

Step-by-step explanation:

We have 12.5ml of acid in the solution.

If we want this to be 3% then we can divide this value by 3 and times by 100 to get the total value.

416.6ml total solution amount

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3 years ago
A group of friends has gotten very competitive with their board game nights. They have found that overall, they each have won an
Sati [7]

The standard deviation is  4 games

A standard deviation (or σ) is a measure of how dispersed the facts are in relation to the mean. Low general deviation method statistics are clustered around the imply, and excessive trendy deviation indicates facts are more unfold.

Don't forget the statistics set: 2, 1, 3, 2, four. The mean and the sum of squares of deviations of the observations from the mean will be 2. 4 and 5.2, respectively. as a consequence, the same standard deviation could be √(5.2/5) = 1.01.

In data, the same old deviation is a degree of the quantity of variant or dispersion of a set of values. A low preferred deviation indicates that the values tend to be close to the mean of the set, while a high general deviation shows that the values unfold out over a much broader variety.

Given that,

mean = μ = 18

standard deviation = Σ =  6

n = 2

μ  x =  μ = 18 games

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6 0
2 years ago
What are the domain and<br> range of the function below?
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Answer:

2nd answer option

Step-by-step explanation:

the domain is the interval or set of valid x values. the range is the same for valid y values.

so, what is the smallest x value we see in the functional graph ?

x = 0

there is no functional value for any x smaller than that.

and then the function goes on and on to the right in all eternity. that means it goes to infinity.

so, domain = [0, infinity)

please consider the round bracket at the end, because "infinity" is not a number.

now for the range and the y values.

in this case I start to ask for the largest y value.

y = 4

for no x value do we get a larger y value.

but it goes down and down in all eternity, going also to infinity, but -infinity (down is negative for y).

so, the range = (-infinity, 4]

"-infinity" is also not a number and therefore not included (hence the round bracket).

5 0
2 years ago
According to the fundamental theorem of algebra, how many zeros does the polynomial below have?
Oxana [17]
It has 3 zeros, because its a polynomial of degree 3.
6 0
3 years ago
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