If two different substances, with the same mass (1 gram) absorb the same amount of energy, which of the following can be predict
1 answer:
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well, 120,000 has 4 zeros and 12,000 has 3 zeros, so if we divide 120,000 by 10 we get 12,000, just to make it short, 12,000 is one tenth of 120,000 and thus the 10%.
now, 48,000, we know that 120,000 is the 100%, what is 48,000 in percentage off of it?
The constant that can be added to - 3x to form a perfect square trinomial is
The given expression is
- 3x
To form a perfect square trinomial
The given expression is
- 3x
first we have to add a constant term with it
- 3x + z
By comparing the given expression and the perfect square trinomial
a = x
Similarly
-2ab = 3x
where know a =x
Then,
-2b = 3
b = -3/2
Similarly
= z
9/4 = z
Convert the simple fraction to mixed fraction
9/4 =
Hence, the constant that can be added to - 3x to form a perfect square trinomial is
The complete question is :
Which of the following constants can be added to x2 - 3x to form a perfect square trinomial?
and
Learn more about perfect square trinomial here
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