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mrs_skeptik [129]
3 years ago
14

Which statement is true?

Mathematics
1 answer:
ANEK [815]3 years ago
8 0

Option B:

A ray has two endpoints and extends infinitely in both directions.

Solution:

Option A: Two lines that intersect are called skew lines.

It is false because,

Two lines are said to be skew lines if they do not intersect and do not lie in the same plane.

Option B: A ray has two endpoints and extends infinitely in both directions.

It is false because,

A ray has one endpoint and extends infinitely in one direction.

Option C: A line is a set of points that extends infinitely in both directions.

It is false true.

A line is a set of points that extends infinitely in both directions.

Option D: Two lines in the same plane are said to be perpendicular if they never intersect.

It is false because,

Two lines are said to be perpendicular if they are intersect.

Hence Option B is true. A line is a set of points that extends infinitely in both directions.

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A parallelogram has a base of 10 centimeters and a height of 4 centimeters. What is the area of the parallelogram?
Illusion [34]

Step-by-step explanation:

Area of a parallelogram=base×height

=10×4

=40cm^2

5 0
3 years ago
18, 19, 20, 20, 23, 26, 260
PSYCHO15rus [73]

Answer:

Median

Step-by-step explanation:

This set of data has an extreme outlier, which will throw off the mean. The median, on the other hand, does not change or changes minimally whether or not the outlier is there.

By default, the mean is always better, but if an outlier, such as this one, is too large, the median is better.

4 0
3 years ago
A circle has a radius of 3. An arc in this circle has a central angle of 60°.
MArishka [77]

Answer:

π

Step-by-step explanation:

s = (∅/360) * (2πr)

s = (60/360) * (2π*3)

s = (1/6) * (6π)

s = π

8 0
3 years ago
The volume of a right circular cone is 300 cubic inches. What is the volume, in cubic inches, of a right cylinder that
Anna71 [15]

Answer:

The volume of a right cylinder is equal to the 3 times of the volume of a right circular cone.

Step-by-step explanation:

Given that,

The volume of a right circular cone is 300 cubic inches

We need to find the volume of a  right cylinder that  has the same base and height as the cone.

Volume of a cone is given by :

V=\dfrac{1}{3}\pi r^2h

And volume of a cylinder is given by :

V'=\pi r'^2 h'

If the base and height of cone and cylinder are same, r=r' and h=h'

\dfrac{V}{V'}=\dfrac{1/3\pi r^2 h}{\pi r'^2h'}\\\\=\dfrac{1/3\pi r^2 h}{\pi r^2h}\\\\\dfrac{V}{V'}=\dfrac{1}{3}\\\\V'=3V

So, the volume of a right cylinder is equal to the 3 times of the volume of a right circular cone.

7 0
3 years ago
5. (8+ 3i) + (-6-12)<br> Simplify the expression
ella [17]

Answer:

3i - 10

Step-by-step explanation:

(8 + 3i) + (-6 - 12)

8 + 3i -18

3i - 10

3 0
3 years ago
Read 2 more answers
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