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Sia ? 4 years, 2 months ago
he remainder is 2.
Step-by-step explanation:
Since we gave given that
when k is divided by 21, it gives a remainder of 9
So, when the same number k is divided by 7, we need to find the remainder.
Since 21 is divisible by 7.
and remainder will be 0.
In such a case, we will consider the remainders only.
So, 9÷7, we get 2 as a remainder
because, 9 = 7×1 +2
Hence, the remainder is 2.
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- Aqueous solutions of acids are electrolytes, meaning that they conduct electrical current.
- Acids have a sour taste.
- Acids change the color of certain acid-base indicates.
- Acids react with active metals to yield hydrogen gas.
- Acids react with bases to produce a salt compound and water.
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Let α and β be the zeros of the polynomial 4x²-8kx-9
It is given that α=-β
Then, α+β=0
-b/a=0
-(coefficient of x)/coefficient of x²=0
8k/4=0
2k=0
k=0
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The writer was flying his old Dakota aeroplane when he saw the black clouds. He was lost in the storm. Suddenly, he saw a black aeroplane by his side, which had no lights, on its wings. The pilot instructed the writer to follow as he had lost the way. He obeyed him like a child. He was very happy to follow him. After some time the pilot of another plane started to land. The writer followed him blindly through the storm and came out of the clouds. He saw the lights of the runway and landed safely.
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Ankit Kumar Singh 4 years, 2 months ago
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