3 years ago

Find the geometric mean between 6 and 15 No decimals.

Mathematics

1 answer:

SVEN [57.7K]3 years ago

8 0

Answer: it’s a decimal 9.5

Hope this helped!

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Which of the following describes the roots of the polynomial function fx) = (x+ 2)2(x-4)(x+1)3?

kolezko [41]

The roots are:

$\bullet \ x=-2 \ with \ multiplicity \ of \ 2 \\ \\ \bullet \ x=4 \\ \\ \bullet \ x=-1 \ with \ multiplicity \ of \ 3$

<h2>Explanation:</h2>

We have the following polynomial function:

$f(x) = (x+2)^2(x-4)(x+1)^3$

The roots of any polynomial functions are those x-values at which the function equals zero. So, in order to find the roots for this function, we set $f(x)=0$ . So:

$(x+2)^2(x-4)(x+1)^3=0 \\ \\ \\ So \ we \ have \ the \ product \ of \ some \ factors \ then: \\ \\ The \ roots \ are: \\ \\ \\ \bullet \ x=-2 \ with \ multiplicity \ of \ 2 \\ \\ \bullet \ x=4 \\ \\ \bullet \ x=-1 \ with \ multiplicity \ of \ 3$