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3 years ago

Which of the following are one-dimensional and have infinite length?

2 answers:

4 0

Out of the choices, the entities with only one dimension and have infinite length are the line and ray. The line extends to both sides while the ray is restricted by an endpoint on one side but can extend infinitely to the other side. The answers are therefore letter D and F.

deff fn [24]3 years ago

3 0

Answer:

The correct answers are : D. Ray and F. Line

Step-by-step explanation:

First we check the definition of all the given terms :

Angle : An angle is the figure formed by two rays, called the sides of the angle, sharing a common endpoint called vertex of the angle. The maximum value of an angle formed at any point can be 360°. So, cannot be infinite.

Segment : It is part of a line whose starting and end points are fixed and cannot be further extended. So, a line segment cannot be infinite.

Plane : A plane is a two-dimensional surface that can be extended as much as infinity. So, length of plane is infinite but it is not one-dimensional.

Ray : It is part of a line whose only one point is fixed and can be extended from the other point to an infinite length. Hence, Ray has infinite length.

Point : It can be defined as a location which does not has length, width and height. So. a point cannot have an infinite length.

Line : A line is a simply a one-dimensional figure that has no bends and can be extended inn both the directions up to infinity.Hence, the line ha s an infinite length.

Therefore, the correct answers are : D. Ray and F. Line

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Burka [1]

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2 years ago

Read 2 more answers

The height 'h' (in feet) of a ball in a baseball game can be modeled by h = -16t² + 28t + 8 , where 't' is the time (in seconds)

lidiya [134]

Answer:

a) No. t < 0 is not part of the useful domain of the function

b) 2.0 seconds

Step-by-step explanation:

a) A graph of the function is shown below. It shows t-intercepts at t=-0.25 and t=2.0. We presume that t is measured forward from some event such as the ball being thrown or hit. The model's predicted ball location has no meaning prior to that event, when values of t are negative.

b) It is convenient to use a graphing calculator to find the t-intercepts. Or, the equation can be solved for h=0 any of several ways algebraically. One is by factoring.

h = 0 = -16t² +28t +8 . . . . . . . . . . . . the ball hits the ground when h = 0

0 = -4(4t² -7t -2) = -4(4t +1)(t -2)

This has t-intercepts where the factors are zero, at t=-1/4 and t=2.

The ball will hit the ground after 2 seconds.

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3 years ago

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Irina18 [472]

Answer:

Step-by-step explanation:

17.020

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3 years ago

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Darya [45]

Answer:

=>1

=> $\frac{-3}{-3}$

=> Simplify:minus and minus simplify each other and so do 3 and 3

=> So were are left with 1

Thus,the answer is 1

Step-by-step explanation:

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2 years ago