3 years ago

A class of 25 students share a set of 100 markers.

Mathematics

1 answer:

Ipatiy [6.2K]3 years ago

5 0

Answer:

It should be D, For each there are 4 markers.

Step-by-step explanation:

Given: there are 100 markers and 25 students

So each student, there are 4 markers.

4 x 25 is 100

Therefore the answer is D.

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Use the Rational Zeros Theorem to write a list of all possible rational zeros of the function.

marishachu [46]

Answer:

$\text{Possible rational zeros}=\pm1,\pm\frac{1}{2},\pm2,\pm3,\pm\frac{3}{2},\pm6,\pm9,\pm\frac{9}{2},\pm18$

Step-by-step explanation:

We have been given the function

$f(x)=-2x^2+4x^3+3x^2+18$

From the rational zeros theorem, we have

$\text{Possible rational zeros}=\pm\frac{\text{Factors of constant term}}{\text{Factors of leading coefficient}}$

From the given function,

Leading coefficient = 2

Factors of 2 are 1,2

Constant term = 18

Factors of constant term = 1, 2, 3, 6, 9, 18

Hence, we have

$\text{Possible rational zeros}=\pm\frac{1,2,3,6,9,18}{1,2}\\\\\text{Possible rational zeros}=\pm1,\pm\frac{1}{2},\pm2,\pm3,\pm\frac{3}{2},\pm6,\pm9,\pm\frac{9}{2},\pm18$

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REY [17]

I think the answer is c

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bezimeni [28]

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Move all terms to the left side and set equal to zero. Then set each factor equal to zero

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