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Anastaziya [24]
3 years ago
7

An engineer measures the peak current (in microamps) when a solution containing an amount of nickel (in parts per 106 ) is added

to a buffer. The experiment was repeated for eleven different values of nickel solutions. A scatterplot showing the data is given below: Suppose a regression line was added to the plot above. If an additional measurement had been taken with the nickel of 62 parts per 106 and a peak current of 0.38 microamps, adding this observation would: A. decrease the intercept, decrease the slope. B. decrease the intercept, increase the slope. C. increase the intercept, increase the slope. D. increase the intercept, decrease the slope.
Mathematics
1 answer:
dangina [55]3 years ago
7 0

Answer:

B. decrease the intercept, increase the slope

Step-by-step explanation:

A slope indicates the steepness of a line while the intercept points the location where it intercepts its axis. The linear relationship between can be defined using the intercept and the slope. Both concepts are used to estimate the average range of change. Since we are trying to add a peak current value of 0.38 which is lesser than the average, the intercept of the graph would therefore decrease and the slope increase.

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Answer:

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Step-by-step explanation:

First by process of elimination, 1.7 is the only positive number, so it is the greatest number compared to the other two.

Now we are left with -2 and -5/2.

We can rewrite -2 as -\frac{2}{1} , as any number by itself itself is the number over 1.

Then we need to find the common denominator for both fractions, meaning they must share the same bottom number.

The 1 in the denominator can be multiplied by 2 to get a denominator of 2 , the same as the denominator for -\frac{5}{2}.

Since the denominator is multiplied by 2, the numerator also has to be multiplied by 2:

-\frac{2}{1} *\frac{2}{2}=-\frac{4}{2}

Now since both fractions share the same denominator, we can compare them by their numerators. 5 is greater than 4, but we must keep in mind that these are negative. The larger the negative number, the smaller the value.

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So our final answer from least to greatest is -5/2, -2, then 1.7

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olga nikolaevna [1]

Answer:

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3 0
3 years ago
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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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