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Andre45 [30]
3 years ago
10

A students calculation was found to have a 15.6% error, and the actual value was determined to be 25.7 mL. What are the two poss

ible values for the students experimental measurement?
Mathematics
2 answers:
Volgvan3 years ago
8 0
The actual value = 25.7 ml
The error = 15.6%
This means that the value of error = 0.156 * 25.7 = 4.0092 ml

Now, the error percentage found means that the student got the value either greater than the actual one with the value of error or less than the actual one with the value of error.

This means that the two possible readings are:
either : 25.7 + 4.0092  = 29.7092 ml
or : 25.7 - 4.0092  = 21.6908 ml

finlep [7]3 years ago
6 0
To find what 15.6% of 25.7 is, multiply 25.7 by 15.6% in decimal form which is .156
25.7 x 0.156 = 3.9936
The answer to this is 25.7 plus or minus 3.9936 meaning your two possible values for the student's experiment are 29.4936 or 21.7064
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snow_tiger [21]
<h2>Hello!</h2>

The answer is:

The first and second options:

f(x) and g(x) intersect at exactly two points.

The x-intercepts of f(x) are common to g(x)

<h2>Why?</h2>

To find the correct option (or options) , we need to remember the following:

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- When a function intercepts the x-axis, it means that the "y" coordinate will be equal to 0.

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From the graph we can see that f(x) intercepts the x-axis at two points (-1,0) and (1,0), also, from the table we can see that g(x) intercepts the x-axis at the same two points (-1,0) and (1,0), it means that the functions intersect at exactly two points.

Hence,  we have that f(x) and g(x)  intersect at exactly two points.

- Second option, the x-intercepts of f(x) are common to g(x): True.

From the graph we can see that f(x) intercepts the x-axis at two points (-1,0) and (1,0), also, from the table we can see that g(x) intercepts the x-axis at the same two points (-1,0) and (1,0), so, both functions intercepts the x-axis at common points.

Hence,we have that the x-intercepts of f(x) are common to g(x)

- Third option, he minimum value of f(x) is less than the minimum value of g(x): False.

From the graph, we can see that the minimum value of f(x) is located at the point (0,-1), also, from the given table for g(x) we can see that there are values below the point (2,-3), meaning that the minimum value of f(x) is NOT less than the minimum value of g(x).

Hence, we have that the minimum value of f(x) is NOT less than the minimum value of g(x).

- Fourth option, f(x) and g(x) have the same y-intercept: False.

We can see that for the function f(x) the y-intercept is located at (0,-1) while from the given table, we can see the y-intercept for the function g(x) is located at (0,1)

Hence,  we have that f(x) and g(x) have differents y-intercepts.

Therefore, the correct answers are:

The first and second options:

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Have a nice day!

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<em><u>Relation:</u></em>

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<em><u>Functions:</u></em>

  • A function is a relation in which there is only one output for each input.
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