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ankoles [38]
3 years ago
9

These is the numbers 16-21

Mathematics
2 answers:
pav-90 [236]3 years ago
7 0

Answer:

question 16:y=3 question 17:B, or -3x^2-2x+1

Step-by-step explanation:

For question 16, all you have to do is graph it. sorry if i am a bit vague here, but trust me, it is y=3

For question 17, you have to look at the first number, or a, and if it is negative, it opens down, and if it is positive, it opens up.

Nataly [62]3 years ago
5 0

Answer:

16. D

17. B

I'm not sure about the other ones sorry

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Answer:

y=8x/9

Step-by-step explanation:

Given that 8 euros were worth $9 and

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Let y represent the number of Euros and x no of dollars.

Given that the relation is of the form y = kx+C

When x=0 y =0,

i.e. C =0

Hence equation is of the form y = kx

Substitute x=8 and y =9

We get 9 = 8k

Or k =8/9

Hence relation is y=8x/9 is the relation between x and y.

WE can verify this for 27 dollars worth 24 euros.

24 =8/9(27) is true.

Thus equation is verified.


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