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ElenaW [278]
3 years ago
13

How can I tell, when doing synthetic division, if the binomial is a FACTOR of the dividend?

Mathematics
1 answer:
Alecsey [184]3 years ago
5 0

If you get 0 as the last value in the bottom row, then the binomial is a factor of the dividend.

Let's say the binomial is of the form (x-k) and it multiplies with some other polynomial q(x) to get p(x), so,

p(x) = (x-k)*q(x)

If you plug in x = k, then,

p(k) = (k-k)*q(k)

p(k) = 0

The input x = k leads to the output y = 0. Therefore, if (x-k) is a factor of p(x), then x = k is a root of p(x).

It turns out that the last value in the bottom row of a synthetic division table is the remainder after long division. By the remainder theorem, p(k) = r where r is the remainder after dividing p(x) by (x-k). If r = 0, then (x-k) is a factor, p(k) = 0, and x = k is a root.

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the volume of a large sphere (of radius R) is twice the volume of a smaller sphere (of radius r). form an equation linking r and
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Step-by-step explanation:

radius of large sphere is R,

then volume is (4/3)*pie*R³

and

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volume of larger sphere is twice of the volume of smaller sphere.

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Express 10.9090909091... as a rational number, in the form pq where p and q are positive integers with no common factors.
Alexeev081 [22]
Firts, Let x be the repeated decimal that we are trying to convert , so x=10.9090909090 equation (1)

Next, lets find how many digits are repeating:
It is pretty cleat that 90 is repeating, and 90 has two digits. So we are going to multiply our equation by 100 to move the decimal point two places:
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Subtract equation (1) from equation (2):
100x-x=1090.90909090-10.90909090
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Solve for x
x= \frac{1080}{99}

We can conclude that 10.9090909091... expressed as a rational number, i<span>n the form pq where p and q are positive integers with no common factors, is </span>\frac{1080}{99}.
4 0
3 years ago
PLEASE HELP ASAP
Andrei [34K]

Answer: 35 the digits both together = 8

Reverse it and add 2.

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The required answer is 35 :)

Step-by-step explanation:

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