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3 years ago

What is x+3y=15 and 4×2y=30

Mathematics

1 answer:

FromTheMoon [43]3 years ago

8 0

Answer:

For the first one, x is 9 and y is 2. 9 + 3(2) = 15. The second is y = 3.75

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3 years ago

Read 2 more answers

The table below shows some inputs and outputs of the invertible function f etc

Snowcat [4.5K]

Answer:

$(a)\ f^{-1}(-15) = -6$

$(b)\ f^{-1}(4) + f(9)=0$

Step-by-step explanation:

Given

The attached table

$(a)\ f^{-1}(-15)$

This represents an inverse function.

So, we look into x row for its value.

i.e.

$f^{-1}(-15) = -6$

$(b)\ f^{-1}(4) + f(9)$

Just like (a)

$f^{-1}(4) = -11$ ---- by looking into the x rows

$f(9) = 11$

So:

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$f^{-1}(4) + f(9)=0$

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2 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

What is x+3y=15 and 4×2y=30​

What is x+3y=15 and 4×2y=30