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VikaD [51]
3 years ago
9

How do I work all of these out separately

Mathematics
1 answer:
umka21 [38]3 years ago
6 0
I)
7^0 = 1

ii)
5^-1 = 1/5

iii)
9^1/2 = √9 = <span>√3^2 = 3

hope that helps</span>
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Y is directly proportional ( x+2)² <br> when x = 8 y= 250 <br> find y when x = 4​
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Answer:

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Step-by-step explanation:

We are given that

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We have to find the value of y when x=4

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Where k= Proportionality constant

Substitute the values

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250=100k

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Now, substitute x=4 and k=5/2

Then, we get

y=\frac{5}{2}(4+2)^2

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