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GrogVix [38]
2 years ago
11

Which mappings is a function? A. W B. X C. Y D. Z

Mathematics
1 answer:
natka813 [3]2 years ago
4 0

The correct answer is B). X

Step-by-step explanation:

Every function got a set of input values called " Domain " and a set of respective output values as " Range"

And function worked as Function( Input value ) = Output value

There are basic rules for function :

1. There always exist output value for every single input value.

2. Every input value should have one and only one output value

<em>For W :</em>

Rule 2 is violated

Here, Input value 6 result to two output value 2 and 4

<em>For X :</em>

No rule is violated

<em>For Y :</em>

Rule 2 is violated

Here, Input value 6 result to two output value 2 and 6

<em>For Z :</em>

Rule 2 is violated

Here, Input value 7 result to two output value 2 and 8

<em>The correct answer is B). X </em>

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Answer:

Sirius will be 20 years old and his father will be 40 years old. ratio form: 20:40

Step-by-step explanation:

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A movie theater earned $3,600 in sold-out ticket sales for the premiere of a new movie. VIP tickets cost $20 per person and regu
julia-pushkina [17]

There are 300 seats in the theater.

Step-by-step explanation:

Given,

Cost of one VIP ticket = $20

Cost of one regular ticket = $8

Worth of sold out tickets = $3600

Let,

x represent the number of VIP tickets sold

y represent the number of regular tickets sold

20x+8y=3600     Eqn 1

y = 2x                   Eqn 2

Putting value of y from Eqn 2 in Eqn 1

20x+8(2x)=3600\\20x+16x=3600\\36x=3600

Dividing both sides by 36

\frac{36x}{36}=\frac{3600}{36}\\x=100

Putting x=100 in Eqn 2

y=2(100)\\y=200

Total = x+y = 100+200 = 300

There are 300 seats in the theater.

Keywords: linear equation, substitution method

Learn more about substitution method at:

  • brainly.com/question/10633485
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#LearnwithBrainly

6 0
2 years ago
it cost Andrea $50 per day to rent a moving truck and an additional $3 for every mile that she drove it. It Andrea spent a total
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104=3m-50 is the equation that I would use, because 104 is the total, and it’s 3 dollars per mile, and $50 of the total is the initial fee. Sorry if the explanation isn’t the best, I’m kinda bad at them haha. Good luck!
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6) If an even-degree polynomial function has a positive leading coefficient, which graph could
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tt

Step-by-step explanation:

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3 years ago
4x+y=17
faltersainse [42]

Answer:

x=4

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Step-by-step explanation:

4x=7y+9

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7y+9+y=17

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x=16/4

x=4

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2 years ago
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