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3 years ago

A researcher tests a new toothpaste on a small sample of five volunteers.

Mathematics

1 answer:

maks197457 [2]3 years ago

7 0

Answer:

A. Replicate the experiment to see whether the results are similar

Step-by-step explanation:

According to Oxford dictionary, an experiment is a scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.

It is best practice in science that an experiment is to be carried out three times before conclusion is made on the experiment and the results published.

An experiment is repeated three times due to the fact that a two-thirds (66%) probability of averaged results are more accurate than a single experiment.

An experiment is replicated (repeated) to establish a relationship between experiment results.

Replication lets scientists see patterns and trends in their experiment results.

A replicated experiment gives a scientist an affirmation on the results and gives more validity to the process and the results.

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natta225 [31]

Answer:

$y = 5\, x + 26$ .

Step-by-step explanation:

Start by finding the slope of the line perpendicular to $y = (-1/5)\, x + 1$ .

The slope of $y = (-1/5)\, x + 1$ is $(-1/5)$ .

In a plane, if two lines are perpendicular to one another, the product of their slopes would be $(-1)$ .

Let $m$ denote the slope of the line perpendicular to $y = (-1/5)\, x + 1$ . The expression $(-1/5)\, m$ would denote the product of the slopes of these two lines.

Since these two lines are perpendicular to one another, $(-1/5)\, m = -1$ . Solve for $m$ : $m = 5$ .

The $(-5,\, 1)$ is a point on the requested line. (That is, $x_{1} = -5$ and $y_{1} = 1$ .) The slope of that line is found to be $m = 5$ . The equation of that line in the point-slope form would be: