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Elden [556K]
3 years ago
15

Solve for x in the equation x2-4x-9=29

Mathematics
2 answers:
daser333 [38]3 years ago
4 0
Hello there!


Check the picture for the answer.

Let me know if you have any questions.

Best of luck with your studies!

Thanks!

Citrus2011 [14]3 years ago
3 0
Hello! And thank you for your question!

First move all the terms to one side:

<span>x^<span><span>​2</span><span>​​</span></span></span>−4x−9−29=<span>0
</span>
Then simplify x^​2​​−4x−9−29:

<span><span><span>x<span><span>​^2</span><span>​​</span></span></span>−4x−38=0</span><span>
Then use the quadratic formula:

x = 4 + 2</span>√42 over 2 , 4 - 2√42 over 2

Finally simplify:

x = 2 + √42, 2 - √42

Final Answer:

x = 2 + √42, 2 - √42
</span>
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If each blue tile has 5 sides and you know you have 3 blue tiles you can multiply 5 by 3
5 x 3 = 15 sides


Next you know the total number of sides is 30 and you just figured out that your 3 blue tiles have a total of 15 sides so you can subtract 15 from 30 to find how many sides are left
30 - 15 = 15sides

Since you know that these are not blue tiles because in the question it stated that you have 3 blue tiles. These have to be sides for red tiles.

Each red tile have 3 sides so you can divide 15 by 3
15/3 = 5

There are 5 red tiles
You are the number 5


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3 years ago
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Svetradugi [14.3K]
<h3>Answer:</h3>

3)  likely

4)  1/2; equally likely

<h3>Step-by-step explanation:</h3>

3) You are being asked to translate a numerical value to a subjective statement. There are no hard-and-fast rules for this. Generally, the meanings of the terms you're asked to choose from are ...

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An 80% probability is greater than 50%, so might reasonably be called "likely."

___

4) a. Four of the eight numbers are even, so the probability of obtaining an even number at random is 4/8 = 1/2.

  b. A probability of 50% might reasonably be called "equally likely", as the probability the event will occur is equal to the probability it won't.

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