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3 years ago

What is the correct input and output of y=3x

Mathematics

1 answer:

atroni [7]3 years ago

7 0

Answer: input , output

0,0

1,3

2,6

3,9

4,12

5,15

6,18

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PLEASE HELP ASAP are f(x)=4/x-2-1 and g(x)=3/x+2-2 inverses of each other?

GREYUIT [131]

Answer:

To find the inverse of:

$f (x)=\dfrac{4}{x-2}-1$

Set the function to y:

$\implies y=\dfrac{4}{x-2}-1$

Rearrange to make x the subject:

$\implies y+1=\dfrac{4}{x-2}$

$\implies (y+1)(x-2)=4$

$\implies xy-2y+x-2=4$

$\implies xy+x=2y+6$

$\implies x(y+1)=2y+6$

$\implies x=\dfrac{2y+6}{y+1}$

Swap x and y:

$\implies y=\dfrac{2x+6}{x+1}$

Change y to the inverse of the function sign:

$\implies f$ $\:^{-1}(x)=\dfrac{2x+6}{x+1}$

Rewrite g(x) as a fraction:

$g(x)=\dfrac{3}{x+2}-2$

$\implies g(x)=\dfrac{3}{x+2}-\dfrac{2(x+2)}{x+2}$

$\implies g(x)=\dfrac{3-2(x+2)}{x+2}$

$\implies g(x)=\dfrac{3-2x-4}{x+2}$

$\implies g(x)=-\dfrac{2x+1}{x+2}$

Therefore, as the inverse of f(x) ≠ g(x), the functions are NOT inverses of each other

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2 years ago

Surface area of a solid figure can be found by multiplying the area of the base by the height of the figure.

iVinArrow [24]

Answer:

Surface area of a solid figure can be found by multiplying the area of the base by the height of the figure.

it's false 

Step-by-step explanation:

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3 years ago

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Which statement is true?

Karo-lina-s [1.5K]

Answer:

b, c, d.

Step-by-step explanation:

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Answer:

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How much money will you have if you started with $30 and put it in an account that earned 11% every year for 5 years?

Elis [28]

At the end of each year, the amount is (1 + 11%) = 1.11 times the amount at the beginning of the year. When that multiplier is applied 5 times, the result is
$30 * 1.11^5 ≈ $50.55

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3 years ago