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3 years ago

When constructing parallel and perpendicular lines, how are the steps similar?

Mathematics

1 answer:

Rasek [7]3 years ago

6 0

<span>Intersecting arcs are created and connected.</span>

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Based on the given information and figure, what can you conclude, and why?*

julsineya [31]

Answer:

Triangle PQR congruent to Triangle TSR by SAS

Step-by-step explanation:

Hope this helps

7 0

3 years ago

Could you take sometime to help me on this please?

mariarad [96]

ANSWER = -1

hi, take x = -1

$-1\leq -1 \ so \ x\leq -1 \\ \\\text{ BUT } x^3=-1 < -1 \text{ is wrong}$

Thanks

8 0

3 years ago

Read 2 more answers

What is the image of point (8,-4) under the rotation R90° about the origin?

mr Goodwill [35]

Answer:

D). (-4,-8)

Step-by-step explanation:

An image at (8,-4) if rotated at an angle of 90° wipl have another location.

First of all, an image at (8,-4) is in the fourth quadrant, and if it's to rotate clockwise at 90° iths supposed to be in the third quadrant.

And in the third quadrant both x and y is negative.

So the new position is at (-4,-8)

7 0

3 years ago

A point (–2, 6) is reflected across the y-axis. What are the coordinates of the new point?

german

I’m pretty sure the coordinates of the new point are (2, 6)! :)
(Also, could I have brainliest?)

7 0

3 years ago

A researcher takes a simple random sample of 83 homes in a city and finds that the mean square footage is 1628 with a standard d

Anna [14]

Answer: (1583.63, 1672.37)

Step-by-step explanation:

Given : Sample size : n= 83

Sample mean : $\overline{x}=1628$

Sample standard deviation : $\sigma=243$

The population standard deviation $(\sigma)$ is unknown .

The confidence interval for population mean :

$\overline{x}\pm t_{\alpha/2}\dfrac{s}{\sqrt{n}}$

For 90% confidence , significance level = $\alpha=1-0.90=0.10$

Using t-distribution table , Critical t-value = $t_{(\alpha/2, n-1)}=t_{0.05,82}=1.6636$

, where n-1 is the degree of freedom.

Now , 90% confidence interval for the mean square footage of all the homes in that city will be :-

$1628\pm (1.6636)\dfrac{243}{\sqrt{83}}\\\\ 1628\pm (1.6636)(26.672715)\\\\\\\\\approx1628\pm 44.37\\\\=(1628- 44.37,\ 1628+ 44.37)\\\\=(1583.63,\ 1672.37)$

Hence, the 90% confidence interval for the mean square footage of all the homes in that city = (1583.63, 1672.37)

7 0

3 years ago