2 years ago

Lol here again what is 7.5% of 30 rounded to the nearest tenth (as a decimal)

Mathematics

1 answer:

UkoKoshka [18]2 years ago

5 0

Answer:

2.3

Step-by-step explanation:

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Step-by-step explanation:

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2 years ago

Evan graphed a cubic function, f(x) = ax3 + bx2 + cx + d, and determined the roots of f(x) to be +1 and 2. What is the value of

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The value of $b$ in the <em>cubic</em> polynomial is -4.

<h3>How to determine the coefficients of a cubic polynomial</h3>

After a quick analysis, we find that given <em>cubic</em> function is equivalent to the following equivalence:

$x^{3}+b\cdot x^{2}+c\cdot x + d = (x-1)^{2}\cdot (x-2)$

$x^{3}+b\cdot x^{2}+c\cdot x + d = (x^{2}-2\cdot x + 1)\cdot (x-2)$

$x^{3}+b\cdot x^{2}+c\cdot x + d = x^{3}-2\cdot x^{2}+x-2\cdot x^{2}+4\cdot x-2$

$x^{3}+b\cdot x^{2}+c\cdot x + d = x^{3}-4\cdot x^{2}+5\cdot x -2$

After a quick observation, we conclude that the value of $b$ in the <em>cubic</em> polynomial is -4. $\blacksquare$

To learn more on polynomials, we kindly invite to check this verified question: brainly.com/question/17822016

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Find the sum of the three expressions and choose the correct answer.

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