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Solnce55 [7]
2 years ago
14

Does this graph represent a function? Why or why not?

Mathematics
1 answer:
Lunna [17]2 years ago
6 0

Answer:

Step-by-step explanation:

B. Yes, because it passes the vertical line test, is the answer.

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nikklg [1K]

Answer:

E      

Step-by-step explanation:

19)        Amount of oil in   =    amount of oil in final product

       .025(x) + .09(40-x)    =    .055(40)      (x = 2.5% amt   40 - x = 9% amt)

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2 years ago
If f(x)=1/9x-2 , what is f–1(x)?
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Lets get started :)

f(x) = \frac{1}{9}x - 2
 y   = \frac{1}{9}x - 2
This is the original equation, and now we have to find the inverse.

When finding the inverse, just flip the variables, x as y and y as x

f ⁻¹(x) 
  ↓
x = \frac{1}{9}y - 2
We have to isolate y as it is our f ⁻¹(x)

Take 2 to the other side { When you see subtraction, you do addition }
x + 2 = \frac{1}{9} y

Take 9 to the other side { When you see division, you do multiplication }
9 ( x + 2 ) = y
9x + 18 = y

f ⁻¹ (x) = 9x + 18


7 0
3 years ago
a rug is shaped like a rectangle whose perimeter is 204ft. the length is 5 time as long as the width. Find the length and the wi
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im not sure but i think it is 15

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