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3 years ago

15

(PLEASE HELP) Which of the following would you offer proof that a relation is a function?

1 answer:

yulyashka [42]3 years ago

6 0

THE Answer: IS A OR B

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There are 48 cards in a pack and each card is either red or black.

Anon25 [30]

Answer:

Step-by-step explanation:

Red:black = 1:1

Red cards = x

Black cards =x

x + x = 48

2x = 48

x = 48/2

x = 24

No. of red cards = 24

No of black cards = 24

Now 8 red cards are removed

So, No. of red cards = 24 - 8 =16

Red: Black = 16:24

$=\frac{16}{24}=\frac{2}{3}$

Red: Black = 2:3

5 0

3 years ago

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What's the reciprocal of 2 4/7 ?

Gnom [1K]

Answer:

7/18

Step-by-step explanation:

² $\frac{4}{7}$ =((2*7)+4)/7

2*7=14

14+4=18

18/7⇒7/18

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3 years ago

How to change 0.00987 to standard form

Darya [45]

<span>9.87 x 10^-3
It's this fam.

</span>

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3 years ago

What is the complete factorization of x^2 - 6x + 9

Finger [1]

Answer:

$(x-3)^{2}$

Step-by-step explanation:

Factor using the perfect square rule.

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3 years ago

A rectangle has an area of 21x + 81 square units. If the width is 3 units, what is the length of the rectangle

rosijanka [135]

If x=3 then the answer is 144

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2 years ago