3 years ago

What is the answer of a+3−a?(it has to be simplified)

2 answers:

6 0

Hello There!

The correct answer is 3.
This is because the a's simply cancel out each other.

Hope This Helps You!
Good Luck :)

liubo4ka [24]3 years ago

3 0

The ancer is 3 i worked it out

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(b) Given that

Gnesinka [82]

Answer:n=-2 or n=4

Step-by-step explanation:

Q is not inversible if det(Q)=0

$\left|\begin{array}{ccc}6&7&-1\\3&n&5\\9&11&n\end{array}\right| =0\\\\\\\\6(n^2-55)-3(7n+11)+9(35+n)=0\\\\n^2-2n-8=0\\\\\Delta=36=6^2\\\\n=\dfrac{2-6}{2} =-2\ or\ n=\dfrac{2+6}{2}=4\\$

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3 years ago

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algol13

Answer:

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Step-by-step explanation:

7 0

2 years ago

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Its not very clear but if someone could help me with the answers that would be great

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2 years ago