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4 years ago

Which statements are true regarding undefinable terms in geometry select two options

Mathematics

1 answer:

natali 33 [55]4 years ago

4 0

Answer:

<h2>A plane consists of an infinite set of lines.</h2><h2>A line has one dimension, length. </h2>

Step-by-step explanation:

The choices are

A point in the form (x, y) has two dimensions.
A plane has a definite beginning and end.
A line has one dimension, length.
A point consists of an infinite set of lines.
A plane consists of an infinite set of lines.

In Ecludian geometry, undefined term are the plane, point and line. Becasue these terms are too intuitive, we don't need to demonstrate them, they just exits, they are too primitive to be defined, that's why they are undefined term.

However, there are some characteristics about each term, for example, a line and a plane are infinite, the plane is formed by infinite of lines and the line is formed by infinite set of points. Additionally, a line has one dimension only, because it's formed by infinte set of points, which doesn't have a dimensions as a singular term, but all together form a length.

Therefore, the right answers are C and E.

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A principal of a large high school wants to estimate the true proportion of high school students who use the community's public

denis-greek [22]

Considering the margin of error of a confidence interval, it is found that the correct option is:

It would be half as wide.

<h3>What is the margin of error of a confidence interval?</h3>

It is modeled by:

$M = z\frac{s}{\sqrt{n}}$

In which:

z is the critical value.

s is the standard deviation.

n is the sample size.

From this, we get that the margin of error is inversely proportional to the square root of the sample size. Then, multiplying the sample size by 4, when it changes from 50 to 200, cuts the margin of error in half, making the interval half as wide.

More can be learned about the margin of error of a confidence interval at brainly.com/question/25890103

5 0

3 years ago

Find the area of the irregular figure. plssss

Flauer [41]

Answer:

366cm²

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Someone please help asap! Thank you!

nekit [7.7K]

Answer:

The answer to your question is:

Perimeter = 26.5 units

Area = 22.5 units²

Step-by-step explanation:

Data

A (5, 9)

B (8, 0)

C (0, 9)

Formula

d = $\sqrt{(x2 - x1)^{2} + (y2 - y1)^{2} }$

dAB = $\sqrt{(8 - 5)^{2} + (0 - 9)^{2} }$

dAB = $\sqrt{3^{2} + 9^{2} }$

dAB = $\sqrt{90}$

dBC = $\sqrt{(0 - 8)^{2} + (9 - 0)^{2} }$

dBC = $\sqrt{8^{2} + 9^{2} }$

dBC = $\sqrt{145}$

dAC = $\sqrt{(0 - 5)^{2} + (9 - 9)^{2} }$

dAC = $\sqrt{5^{2} + 0^{2} } \\$

dAC = $\sqrt{25} = 5$

Perimeter = $\sqrt{90} + \sqrt{145} + 5$

Perimeter = 26.5 units

Area = 1/2 [ ( 5x0) + (8x9) + (0 x 9) - (5x 9) - (0x 0) - (8x9)]

= 1/2 [ 0 + 72 + 0 - 45 - 0 - 72]

= 1/2 [-45]

= 45/2

= 22.5 units²

4 0

4 years ago

The volume of a room is 400 cu. m and its height is 25 m. Find the cost of carpeting the floor of the room at 5 paisa per sq. cm

madam [21]

Answer:

Step-by-step explanation:

This only works if the room is a prism shaped, or cylinder.

Volume of a prism or cylinder is area of he base times height. So since we know the height and volume we can fand the area.

V = h*B

B = V/h

B = 400/25

B = 8

This is a very narrow room, anyway, the area of the base, which we want to carpet is 8 square meters. Can you figure out how much it will cost since each square meter will cost 5?

5 0

4 years ago

Solomon has read 1/3 of his book. He finishes the book by reading the same amount each night for 5 nights.

Nadusha1986 [10]

Answer:

A - Solomon read $\frac{2}{15}$ of the book each night.