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scZoUnD [109]
3 years ago
5

Why does duffer Mcvolt want lights strung around the golf course

Mathematics
1 answer:
sertanlavr [38]3 years ago
4 0

He really enjoys swinging nightclubs

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Given the equation Square root of 8x plus 1 = 5, solve for x and identify if it is an extraneous solution.
Kisachek [45]
Do recall that squaring and the *radical sign* cancel each other out... like so:(\sqrt{a})^{2}= a

When you put it that way, it isn't enough :P
(\sqrt{a})^{2}= a
(\sqrt{8x+1})^{2}=?

so you start with
(\sqrt{8x+1})^{2}= (5)^{2}
8x+1=25 <-- subtract 1 to both sides
8x=24 <- divide 8 to both sides
x= 3

To find out if it's an extraneous solution ask yourself: It mustn't result in a radical that I like to call... 'illegal'. Plug it into the radicand 8x+1 and make sure you get something that is not a negative number.... so, DO you get a negative number when you plug in x = 3 into the radicand?

(extraneous solution is a invalid solution)

x=3 not extraneous


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3 years ago
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The sum of two numbers is 20.The difference is 4 what are the numbers?
Alex17521 [72]
The sum of two numbers is 20 and their difference is 4. Which is the greater of the two numbers? The answer is 12.
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2 years ago
Given that D(x)=2 select all of the following that are true statements
topjm [15]
If you're going to do a multiple choice question, please include the choices so we can better help you!
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3 years ago
The gym is filled with 215 students &amp; adults. Student tickets are $.50 and adults are $2.00. If $250.00 was collected, how m
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In order to determine the correct answer, it would be helpful to set up equations. We do as follows:

Let x = students
      y = adults

x + y = 215
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SOlving simultaneously, we have:

x = 120 students 
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Hope this answers the question. Have a nice day.
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Babes, see the pic for the answer...

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