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OLEGan [10]
3 years ago
10

If 3x equal 3y what is the relationship between X and Y ​

Mathematics
1 answer:
Murrr4er [49]3 years ago
8 0

If 3x=3y then by dividing <em>both</em> sides by 3 you obtain x=y, that is their relationship is equality.

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Suppose that A is nonsingular. Prove that its inverse A-1 is unique. [Hint: Show that if there exists two matrices, B and C, suc
Bogdan [553]

Answer with Step-by-step explanation:

Let A is non-singular

\mid A\mid\neq 0

We have to prove that A^{-1} is unique.

Suppose B and C are inverse of A such that

BA=I and AC=I

By using property AA^{-1}=A^{-1}A=I

C=C

(BA)C=B(AC)

I\cdot C=B\cdot I

C=B

Hence, the inverse of A is unique.

4 0
3 years ago
I need help rlly bad I have no idea what’s the answer plsss help me!!!
lyudmila [28]

Answer:

n = 6\sqrt{3}

Step-by-step explanation:

Using the sine ratio in the right triangle and the exact value

sin30° = \frac{\sqrt{3} }{2} , then

sin30° = \frac{opposite}{hypotenuse} = \frac{n}{12} = \frac{\sqrt{3} }{2} ( cross- multiply )

2n = 12\sqrt{3} ( divide both sides by 2 )

n = 6\sqrt{3}

3 0
2 years ago
Read 2 more answers
What is the difference? complete the equation<br> -5 - (-9)
BaLLatris [955]

Answer:

Answer is 4

Step-by-step explanation:

5 - ( - 9) = -  5 + 9 \\  = 4

<em>HAVE A NICE DAY</em><em>!</em>

<em>THANKS FOR GIVING ME THE OPPORTUNITY</em><em> </em><em>TO ANSWER YOUR QUESTION</em><em>. </em>

5 0
2 years ago
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If your expenses are more than your income, then you have a positive net cash flow.
son4ous [18]
False because you dont have the full amount of income you need
7 0
3 years ago
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Find the perimeter of given figure:
Afina-wow [57]

Answer:

≈ 18 cm

Step-by-step explanation:

1.  Find the length of half a circle of radius 3.5 cm:

\tt \cfrac{C}{2}= \cfrac{2\pi r}{2}=\pi r=3.14\cdot3.5=10.99 \ cm

2.  Find the length of the diameter:

D = 2r = 2 · 3.5 = 7 cm

3. Find the perimeter of the figure:

P = 10.99 + 7 = 17.99 ≈ 18 cm

7 0
3 years ago
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