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galina1969 [7]
3 years ago
8

Need some help someone please?

Mathematics
2 answers:
zlopas [31]3 years ago
8 0
I am pretty sure that the answer is 15+ n or it could be 15n
Svet_ta [14]3 years ago
7 0
The answer is c 15 plus m
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Question:
Tamiku [17]

Answer:

<h2>      x₁ = - 2 + √2 ,   x₂ = - 2 - √2</h2>

Step-by-step explanation:

3x^2 + 12x + 6 = 0\\\\a=3\,,\ b=12\,,\ c=6\\\\\\ x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\ x=\dfrac{-12\pm\sqrt{12^2-4\cdot3\cdot6}}{2\cdot3}=\dfrac{-12\pm\sqrt{144-72}}{2\cdot3}=\dfrac{-12\pm\sqrt{72}}{2\cdot3}=\dfrac{-12\pm6\sqrt{2}}{6}\\\\x_1=\dfrac{6(-2+\sqrt{2})}{6}=-2+\sqrt2\\\\x_2=\dfrac{6(-2-\sqrt{2})}{6}=-2-\sqrt2

8 0
3 years ago
Find the volume of the composite solid. Round your answer to the nearest hundredth. A. 22.05mm B. 22.19mm C. 22.53mm D. 22.54mm
Nata [24]
THE ANSWR IS B GOODLUCK
8 0
3 years ago
How can you get a equivalent ratio? I need help!<br>​
seraphim [82]
When you can divide, or multiply by the same number. for numerator and denominator.
4 0
3 years ago
Matt paid 55$ at a restaurant. the amount included a 10% tip. What was the check amount before the tip?
BigorU [14]
$50.
As 50 + 5 (10% of $50) = $55.
4 0
3 years ago
Read 2 more answers
Is this correct? Pls help within 10 minutes will mark brainliest
Vedmedyk [2.9K]

Answer:

the first answer is correct

the second answer is correct if they messed up on the question and meant to ask for the MAD of set B

I think the 3rd answer is incorrect (I got 1.09), so you might want to double-check your 3rd answer since it is asking for "times bigger", not how much bigger, which means how many times larger is the MAD of set A than that of set B and to find how many times bigger a number is than another number, you have to divide the first number by the second number.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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