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Luden [163]
3 years ago
5

Given A = {(1, 3)(-1, 5}(6, 4)}, B = {(2, 0)(4, 6)(-4, 5)(0, 0)} and C = {(1, 1)(0, 2)(0, 3)(0, 4)(-3, 5)}, answer the following

multiple choice question:
From the list of sets A, B, and C above, choose the set of relations that correctly represents a function.
Set A only
Sets A and C only
Sets A and B only
Mathematics
2 answers:
masya89 [10]3 years ago
4 0
Sets A and B only. Set C has the x value repeating so it is not a function. 
laila [671]3 years ago
3 0

Answer:

Set A and B only

Step-by-step explanation:

We are given that

A={(1,3),(-1,5),(6,4)}

B={(2,0),(4,6),(-4,5),(0,0)}

C={(1,1),(0,2),(0,3),(0,4),(-3,5)}

We are given that sets A, B and C represent the relations .

We have to choose the set of  relations that correctly represents a function

Function: It a mapping between two sets A and B. Every element of set A has unique image in set B.More than one image of an element cannot be possible or an element cannot have more than one image.Two elements or more than  two elements have same image.

In set A, each element is related with unique element.

Image of 1=3

Image of -1=5

Image of 6=4

Therefore, A represents a function.

In set B, Every element is related to a unique element.

Image of 2=0

Image of 4=6

Image of -4=5

Image of 0=0

Hence, B represents a function .

In set C

Image of 1=1

Image of 0=2

Image of 0=3

Image of 0=4

Image of -3=5

By definition of function, each element have only one image.

But 0 have more than one image.

Therefore, C does not represents  function.

Set A and B only represents a function

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Answer:

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Step-by-step explanation:

Since these 2 angles are vertical angles, then they are both equal. Set up an equation and then solve it.

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Step-by-step explanation:

use the formula for simple interest =

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adoni [48]

Answer:

arah is at a miniature exhibit. There is a model of a skyscraper. Underneath the model was a ratio. It said:

1 inch=30 feet.

If the model is 38 inches tall, how Sarah use this information to find the actual height of the skyscraper?

In this concept, you will learn how proportions are used to find actual and scale dimensions using a scale ratio.

Using Proportions to Find Dimensions

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A scale drawing is a drawing that is used to represent and object that is too large to be drawn in its actual dimensions. If a drawing is to scale, you can use proportions to determine the actual dimensions of the scale drawing.

Let’s look at a scale drawing of a sculpture. In the drawing, the sculpture is 4 inches tall. The scale is 1 inch : 4 feet. It scale can be written as

1 in4 ft

(Note: Inch is abbreviated “in.” or with the double prime mark, ″. Foot/feet is abbreviated “ft” or with the single prime mark, ′.)

A drawing with this scale tells you that 1 inch on paper is equal to 4 feet in real life. If the drawing is 4 inches tall, use the scale to find the actual height of the sculpture.

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First, write a proportion to find the measurement of the width.

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Next, cross multiply and simplify the equation to find the value of x.

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nalin [4]
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Dahasolnce [82]

Answer:

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Step-by-step explanation:

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