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3 years ago

11

A point with a positive x-coordinate and a negative y-coordinate is reflected over the y-axis.

1 answer:

Luden [163]3 years ago

4 0

The x-coordinate is negative, and the y-coordinate is negative.

This is because the y-axis is vertical, so reflecting across it means you will change the sign of the x-value, and the sign of the y-value will stay constant. Since we start off with a positive x and negative y, we will end up with a negative x and negative y.

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denpristay [2]

Answer:

Using the given formula:

I = P × R ×T

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3 years ago

What are the mean absolute deviation and population standard deviation of this data set? Round to the nearest tenth if necessary

tekilochka [14]

Answer:

For a data set of N elements:

{x₁, x₂, ..., xₙ}

The mean is:

$M = \frac{x_1 + x_2 + ... + x_n}{N}$

The mean absolute deviation is:

$MAD = \frac{|x_1 - M| + ... + |x_n - M|}{N}$

And the population standard deviation is:

$PSD = \frac{\sqrt{|x_1 - M|^2 + ... + |x_n - M|^2} }{\sqrt{N}}$

In this case, our set has 5 elements, and the set is:

{2, 4, 6, 9, 14}

The mean of this set is:

$M = \frac{2 + 4 + 6 + 9 + 14}{5} = 7$

The mean absolute deviation is:

$MAD = \frac{|2 - 7| + |4 - 7| + |6 - 7|+ |9 - 7| + |14 - 7| }{5} = 3.6$

And the population standard deviation is:

$PSD = \sqrt{\frac{|2 - 7|^2 + |4 - 7|^2 + |6 - 7|^2+ |9 - 7|^2 + |14 - 7|^2 }{5}} = 4.2$

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2 years ago

Annie has two jobs. She gets paid $13.04 per hour for tutoring at City College and $9.75 per hour at a coffee shop. Last week sh

Tanzania [10]

Answer:

ahow much did she earn(in dollars)

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3 years ago

Read 2 more answers

What's the answer ?????

ra1l [238]

1/2 because it's 2 times smaller

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3 years ago

What is 8/21 in simplifeyd

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