4 years ago

Find the mean (average) of the numbers below

Mathematics

1 answer:

Tatiana [17]4 years ago

7 0

Where are the numbers?

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What is the inverse of the function f(x)=1/9x+2

Anna35 [415]

Answer:

$f^{-1}(x)=9x-18$

Step-by-step explanation:

we have

$f(x)=\frac{1}{9}x+2$

Let

$y=f(x)$

$y=\frac{1}{9}x+2$

Exchange variables x for y and y for x

$x=\frac{1}{9}y+2$

Isolate the variable y

$x-2=\frac{1}{9}y$

$y=9(x-2)$

$y=9x-18$

Let

$f^{-1}(x)=y$

$f^{-1}(x)=9x-18$ -------> inverse function

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4 years ago

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You want to make five-letter codes that use the letters A, F, E, R, and M without repeating any letter. What is the probability

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Number of all possibilities - $5!=120$
number of codes starting with A - $4!=24$

the probability is $\frac{24}{120}=\frac{1}{5}$

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3 years ago

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Mazyrski [523]

64 percent is your answer

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3 years ago

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Mato is making a leather belt inlaid with beads. On the first day there were b beads on the belt. On

kompoz [17]

Answer:

Step-by-step explanation:

On the fourth day, there were b^3 beads and 216 beads on the belt, which means b^3 = 216. Taking the cube root of both sides, we have b = 6, which means there were 6 beads on the belt on the first day.

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3 years ago