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Ksju [112]
2 years ago
15

You are to demonstrate that you understand what represents a function and what does not represent a function. You may do this by

either writing a paragraph using complete sentences or drawing pictures with labels.
Mathematics
1 answer:
My name is Ann [436]2 years ago
6 0

We know that functions are mathematical entities that assign unique outputs to given inputs. In other words, a function can't have repeated values in the input repeated x-value.

For example consider the relation {(1,4), (1,5), (2,6), (3,7), (4,8), (5,9)}.

We see that above relation has repeated x-value "1" which is assigned to two different output values 4 and 5. So by definition of function, above relation can't be a function.

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The equation r=3c +5 represents the values shown in the table below C- 6, 8, 12, 18 R- 23, 29, ?, 59 What is the missing value i
almond37 [142]
The missing value is 53.

3 0
3 years ago
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Arun is twice as old as Shreet 5 years ago his age was three times shree age find their present ages​
Mariulka [41]

Answer:  Arun is now 20, Shree is 10 years old

Step-by-step explanation:  

In the system of equations Arun's age is a. Shree is s

a = 2s .(current age equation)  Subtract 5 from each for five years ago,

a-5 = 3(s-5) . Substitute 2s for a in the second equation

2s -5 = 3(s-5)  distribute and reorganize

2s-5 = 3s -15 .   15 - 5 = 3s - 2s

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a = 2(10)

a = 20

5 years ago  Shree was 5 and Arun was 15

7 0
2 years ago
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Write -3i + (3/4+2i) - (9/3+3i) as a complex number in standard form
bogdanovich [222]

Answer:

=  -3i + (3/4+2i) - (9/3+3i)

= (3/4 - 9/3) + (-3 + 2 -3)i

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4 0
3 years ago
Factor 81x²-25. Remember there is no middle term. This is a sum and difference of 2 squares.
natulia [17]

Hey there!!

Basic formula :

... a² - b² = ( a + b ) ( a - b )

Equation given :

... 81x² - 25

... ( 9x )² - ( 5 )²

... ( 9x + 5 ) ( 9x - 5 )

Hope it helps!!

5 0
3 years ago
You draw 4 cards from a deck of 52 cards with replacement. What are the probabilities of drawing a black card on each of your fo
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Solution:

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Probability of an event = \frac{\text{total favorable outcome}}{\text{total possible outcome}}

Probability of drawing a black card from a pack of 52 cards = \frac{26}{52}=\frac{1}{2}

As each card drawn is replaced,Each black card draw is an independent with another black card draw.

Probabilities of drawing a black card on each of  four trial=

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4 0
3 years ago
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