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Jlenok [28]
3 years ago
11

Shawn found that a solution of x = 3 was extraneous for his function. What would be a possible denominator in Shawn's function?

Mathematics
2 answers:
Alex_Xolod [135]3 years ago
6 0

Your answer is B. x2 -2x -3

Hope this helps!!

laiz [17]3 years ago
3 0

Answer:

Option B is correct

Step-by-step explanation:

Given: A solution x =3 was extraneous for his function.

Extraneous solution defined as a root of a transformed equation that is not a root of the original equation because it was excluded from the domain of the original equation.

The only function from the given options

f(x) = x^2-2x-3 has the solution x =3

therefore,

3 is excluded from the domain of the \frac{x^2-2x-3}{x-3}  because it would make the denominator of one of the fractions zero and division by zero is not allowed.

Therefore, it cannot be a root of the equation \frac{x^2-2x-3}{x-3}



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vazorg [7]

Answer:

They seem correct!

Step-by-step explanation:

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3 years ago
How can a translation and a reflection be used to map ΔHJK to ΔLMN? Translate K to N and reflect across the line containing HJ.
Svet_ta [14]

Answer:

<u>Translate K to N and reflect across the line containing JK. </u>

Step-by-step explanation:

The rest of the question is the attached figure.

From the figure, we can deduce the following:

∠K = ∠N

JK = MN

HK = LN

So, N will be the image of K

By translating K to N, The segment JK will over-lap the segment MN,

Then, we need to reflect the point H across the the line containing JK to get the point L

So, the translation and a reflection that will be used to map ΔHJK to ΔLMN:

<u>Translate K to N and reflect across the line containing JK. </u>

3 0
3 years ago
Read 2 more answers
35 points<br> What is an approximate average rate of change of the graph from x = 8 to x = 13
Ghella [55]
Rate of change is -2 because you can do rise over run to find the constant rate of change, and since you are going down you have a negative slope. 
4 0
3 years ago
a quadrilateral has 2 right angles. the measure of the third angle is 73, what is the measure of the forth angle?
hoa [83]

Answer: 107 degrees.

Step-by-step explanation:

A quadrilateral is defined as a 2-dimensional closed shape which has four sides and four vertices.

By definition the interior angles of a quadrilateral add up 360 degrees.

We know that this quadrilateral has 2 right angles (which are angles that measure 90 degrees) and we know that the measure of the third angle is 73 degrees.

Let be "x" the measure of the fourth angle.

Then you can write this expression:

360\°=90\°+90\°+73\°+x

And finally solve for "x":

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5 0
3 years ago
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BlackZzzverrR [31]

Answer:

80 minutes or 1 hour 20 min

Step-by-step explanation:

we know that

The speed is equal to divide the distance by the time

Let

s -----> the speed in miles per hour

d ----> the distance in miles

t ----> he time in hours

so

s=\frac{d}{t}

solve for t

t=\frac{d}{s}

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substitute and solve for t

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8 0
3 years ago
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