3 years ago

if i have 19 friends they each want 3 slices of cake i have 38 slices how do i divide and get a simple remainder.

Mathematics

1 answer:

Salsk061 [2.6K]3 years ago

3 0

38 divided by 19 than multiply by 3

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Option D:

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Given function is

$$r(x)=\frac{2 x}{x-1}$

<u>To find the domain of the function:</u>

Option A: $\{x: x \neq 0\}$

Substitute x = 0 in r(x).

$$r(0)=\frac{2 \times 0}{0-1}=0$

If x = 0, then r(0) = 0

So that x ≠ 0 is false.

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Option B: $\{x: x \neq \pm 1\}$

Substitute x = –1 in r(x).

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If x = –1, then r(–1) = 1

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Substitute x = 1 in r(x).

$$r(1)=\frac{2 \times 1}{1-1}=\frac{2}{0}$

It is indeterminate.

So, all real numbers are not the domain of the function.

Option D: $\{x: x \neq 1\}$

Substitute x = 1 in r(x).

$$r(1)=\frac{2 \times 1}{1-1}=\frac{2}{0}$

It is indeterminate.

So, $\{x: x \neq 1\}$ is the domain of the function.

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Step-by-step explanation:

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