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3 years ago

6

Hello can you please help me posted picture of question

1 answer:

adell [148]3 years ago

3 0

The statement if TRUE.

There is no restriction on the coefficient of the polynomial, it can either be a fraction,a negative number of a positive number or even irrational number. It does not have any effect.
What matters is the exponent. The exponent must be a non-negative integer. Since in this case the exponent is positive, the expression will be a polynomial.

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2 years ago

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3 years ago

A chemist needs 130 milliliters of a 47% solution but has only 35% and 87% solutions available. Find how many milliliters of eac

choli [55]

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Step-by-step explanation:

Given: Total solution required = 130 milliliters

Let x = Amount of 35% solution (in milliliters).

Then, Amount of 87% solution required = 130 - x

As per given,

Concentration = 0.35x +0.87(130-x)=0.47(130)

$0.35x +113.1-0.87x=61.1\\\\\Rightarrow\ -0.87x+0.35x=61.1-113.1\\\\\Rightarrow\ -0.52 x= -52\\\\\Rightarrow\ x=\dfrac{52}{0.52}=100$

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2 years ago