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Taya2010 [7]
3 years ago
10

Explain how you can tell how well a linear or exponential fits a set of data

Mathematics
1 answer:
kotykmax [81]3 years ago
4 0
The coordinates that you record is an example of data from the graph I think
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How do you write <br><br> 40/25<br> as a percentage?
rosijanka [135]
<span>What percent of 40 is 25? 
Let x = what percent 
of = multiplication 
is means = 
We now write it in math terms: 
x times 40 = 25 

40x = 25 
Divide both sides by 40 to find x. 
x = 25/40 
x = 0.625 
Change the decimal number 0.625 to a percent. 
x = 62.5%
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6 0
3 years ago
3x - 4y = 6 6x - 8y = 10 The system shown has _____ solution(s). no. one. infinite.
alexira [117]
It would actually be no solutions, since an equation can't have more than one equal sign xD
5 0
2 years ago
Read 2 more answers
You're a quality control manager in a fruit juice company. You want to choose
alekssr [168]

Answer:

246.

Step-by-step explanation:

a) The 95% confidence level two-tail confidence interval for the mean value of the key index of this batch is between 98.22 and 99.78

b) The minimum sample size to achieve this is 246.

Step-by-step explanation:

We have that to find our  level, that is the subtraction of 1 by the confidence interval divided by 2. So:

Now, we have to find z in the Ztable as such z has a pvalue of .

So it is z with a pvalue of , so  

Now, find the margin of error M as such

In which  is the standard deviation of the population(square root of the variance) and n is the size of the sample. So in this question,  

The lower end of the interval is the sample mean subtracted by M. So it is 99 - 0.78 = 98.22

The upper end of the interval is the sample mean added to M. So it is 99 + 0.78 = 99.78.

a) The 95% confidence level two-tail confidence interval for the mean value of the key index of this batch is between 98.22 and 99.78

(b) (5 points) If we want the sampling error to be no greater than 0.5, what is the minimum sample size to achieve this based on the same confidence level with part (a)

We need a sample size of n

n is found when  

Then

Rounding up

The minimum sample size to achieve this is 246.

7 0
2 years ago
The expressions a(8x+7) and 4x+3.5 are equivalent. What is the value of a?
valentina_108 [34]

Answer:

a=1/2

Step-by-step explanation:

From the question, the expression a(8x+7) is equivalent to 4x+3.5

     Which means that multiplying 8x by a gives 4x and multiplying 7 by a gives 3.5

So, we can write the following to find the value of a

a(8x+7)\equiv 4x+3.5

we can write the following

8ax=4x

\implies a=\frac{4x}{8x}= \frac{1}{2}

Hence the value of a is 1/2

4 0
3 years ago
I Bought 10 apples three days ago. 3 of them were rotten, I ate 2 and gave 5 away. How many apples do I have left?
Nutka1998 [239]

Answer: 0

Step-by-step explanation: if you gave 5 away your left with 5 if 3 were rotten your left with 2 but you ate 2 meaning you have no apples left.

7 0
2 years ago
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