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2 years ago

11

What is the product of -1 2/3 and (-5 1/4) as a mixed number and in simplest form please :)

1 answer:

antiseptic1488 [7]2 years ago

3 0

First you would take 1 2/3 and multiply the 3 times 1 which is 3 plus 2 which makes it 5 now it is 5/3 now do the same for the other one and it is 21/4 now multiply the product of that is 105/12 now as a mixed number it is 8 9/12 because you divide 105 by 12 :) happy to help so the final answer is 8 9/12

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Read 2 more answers

Given that f(x)=2x/3 evaluate f^-1(6)

abruzzese [7]

Answer:

9

Step-by-step explanation:

we know by definition that

$f^{-1}(f(x))=x\\\\f^{-1}(\frac{2x}{3})=x\\\\f^{-1}(x)=ax\\\\f^{-1}(\frac{2x}{3})=a(\frac{2x}{3})=x\\\\f^{-1}(x)=\frac{3x}{2}$

so now we evaluate

$f^{-1}(6)=\frac{3*6}{2}\\\\=3*3\\\\f^{-1}(6)=9$

and if we want to do an extra step

$f^{-1}(f(6))=6\\\\f^{-1}(\frac{2*6}{3})=f^{-1}(4)=\frac{3*4}{2}=6$

which works.

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