2 years ago

-3*6 Multiplying and dividing integers

Mathematics

1 answer:

Vilka [71]2 years ago

7 0

All we need to do is multiply.

-3 * 6 = -18

Anytime you multiply a negative number to a positive number, its always going to be negative.

Best of Luck!

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An urn contains six red balls and four green balls. A sample of seven balls is selected at random.

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There are 10 balls in the Urn Total.

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3 years ago

write a polynomial function of least degree with integral coefficients that has the given zeros. -(1/3), -i

inessss [21]

Answer:

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

Step-by-step explanation:

If a real number $-\frac{1}{3}$ is a zero of polynomial function, then

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is the factor of this function.

If a complex number $-i$ is a xero of the polynomial function, then the complex number $i$ is also a zero of this function and

$x-(-i)=x+i\ \text{ and }\ x-i$

are two factors of this function.

So, the function of least degree is

$f(x)=\left(x+\dfrac{1}{3}\right)(x+i)(x-i)=\left(x+\dfrac{1}{3}\right)(x^2-i^2)=\\ \\ =\left(x+\dfrac{1}{3}\right)(x^2+1)=\dfrac{1}{3}(3x+1)(x^2+1)=\dfrac{1}{3}(3x^3+x^2+3x+1)$

If the polynomial function must be with integer coefficients, then it has a form

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

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What is the greatest number of planes determined by four collinear points

Sidana [21]

The greatest number of planes determined by four collinear points is ∞ , infinity

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