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3 years ago

When constructing parallel lines, how are the steps similar

1 answer:

7 0

A. Intersecting arcs are created and connected.
B. A protractor and ruler are used to take accurate measurements.
C. Four right angles are created.
D. There are no similarities.

2. Which step is included in the construction of inscribed polygons?

A. Measure the diameter of the circle with a straightedge.
B. Connect two arcs together with a compass.
C. Measure the length of each side with a straightedge.
D. Create a circle from a given center with a compass.

3. When constructing parallel lines, how can you be sure the lines you constructed are parallel?

A. See if the distance between the two lines is consistent with a compass.
B. Make sure the lines intersect at right angles with the corner of a piece of paper.
C. Measure each of the angles with a straightedge.
D. There is no way to ensure you have constructed parallel lines.

4. When constructing inscribed polygons and parallel lines, how are the steps different?

A. A protractor is used to take measurements
B. Four right angles are created.
C. A compass is used to copy an angle.
D. There are no similarities.

You might be interested in

A total of 750 tickets were sold for the school play. They were either adult tickets or student tickets. There were 50 more stud

Vlada [557]

Answer:

350 adult tickets were sold.

Step-by-step explanation:

Let's set up some values:

x = adult tickets

x + 50 = student tickets, since there were 50 more student tickets than adult tickets.

Now, let's set up our equation. If these two values add up to 750 tickets, then we can conclude the following:

(x) + (x + 50) = 750

2x + 50 = 750

2x = 700

x = 350 adult tickets. This means there were 400 student tickets sold.

5 0

1 year ago

Jack is a college athlete who has been weighing himself weekly on the same scale in the athletic center for the past few years.

Radda [10]

Answer:

a) Since the Confidence is 0.90 or 90%, the value of $\alpha=0.1$ and $\alpha/2 =0.05$ , and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-NORM.INV(0.05,0,1)".And we see that $z_{\alpha/2}=\pm 1.64$

b) $\bar X \sim N(\mu ,\frac{\sigma}{\sqrt{n}})$

And the standard error is given by:

$SE = \frac{\sigma}{\sqrt{n}}=\frac{3}{\sqrt{9}}=1$

c) $\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

And the margin of error is:

$ME= z_{\alpha/2} \frac{\sigma}{\sqrt{n}} = 1.64$

And then the confidence interval is be given by:

$200-1.64 = 198.36$

$200+1.64 = 201.64$

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

$\bar X= 200$ represent the sample mean

$\mu$ population mean (variable of interest)

$\sigma=3$ represent the population standard deviation

n=9 represent the sample size

Part a

Since the Confidence is 0.90 or 90%, the value of $\alpha=0.1$ and $\alpha/2 =0.05$ , and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-NORM.INV(0.05,0,1)".And we see that $z_{\alpha/2}=\pm 1.64$

Part b

The distribution for the sample mean is given by:

$\bar X \sim N(\mu ,\frac{\sigma}{\sqrt{n}})$

And the standard error is given by:

$SE = \frac{\sigma}{\sqrt{n}}=\frac{3}{\sqrt{9}}=1$

Part c

The confidence interval for the mean is given by the following formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

And the margin of error is:

$ME= z_{\alpha/2} \frac{\sigma}{\sqrt{n}} = 1.64$

And then the confidence interval is be given by:

$200-1.64 = 198.36$

$200+1.64 = 201.64$

8 0

3 years ago

How do you say hi in chamoru?

kobusy [5.1K]

Answer:

Step-by-step explanation:

To say Hi in Chamoru you say, "Håfa Adai" (Chamorro for "Hello").

Hope this helped!

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3 years ago

100 POINTS!!! Please solve this question step by step and explain each step for 100 points.

djverab [1.8K]

$2\dfrac 29 = -\dfrac 45 m \\\\\implies 2+ \dfrac 29 =- \dfrac 45 m \\\\\implies \dfrac{20}9 = -\dfrac 45 m \\\\\implies 5(20) = (-4m)9\\\\\implies 100 = -36m\\\\\implies m = -\dfrac{100}{36} \\\\\implies m = -\dfrac{25}9\\\\\implies m=-2\dfrac 79$

3 0

2 years ago

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18. Twelve theatre tickets cost $66. What is<br> the cost of 5 tickets?

nikklg [1K]

Answer:

$27.50

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers