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2 years ago

Which represents the inverse of the function f(x) = 4x?

1 answer:

8 0

To find the inverse function simply replace "x" by "y", replace "y" by "x", and solve for y
f(x)=4x
y=4x
x=4y
y=x/4 or h(x)=(1/4)x

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Simplify the expression (x)^3(x^3y)^2

larisa86 [58]

Answer:

Step-by-step explanation:

$(a^{m})^{n} = a^{mn}\\\\x^{3}*(x^{3}*y^{2})^{2}=x^{3}*(x^{3})^{2}*(y)^{2}\\\\\\=x^{3}*x^{3*2}*y^{2}\\\\\\=x^{3}*x^{6}*y{2}\\\\\\=x^{3+6}*y^{2}\\=x^{9}y^{2}$

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3 years ago

Which function is the inverse of f(x)= x^3-6x^2+12x-8

Anna71 [15]

We're not given the choices but we don't need them.

The only way this problem is tractable to a middle or high schooler is if the polynomial is perfect cube; a little thought yields

$f(x) = (x-2)^3$

To find the inverse let's call f(x) x and call x y and solve for y.

$x = (y-2)^3$

$y-2 = \sqrt[3]{x}$

$y = 2 + \sqrt[3]{x}$

4 0

3 years ago

Read 2 more answers

There're some old video games you sell on Ebay for $6, $7 and $9. The titles include " The Pirates", "Under the sea" and "The dr

Semenov [28]

Answer:

2/9

Step-by-step explanation:

lets create a sample space

the pirates can be sold for $7 $6 or $9

6 7 9

under the sea can be sold for $6 $7 or $9

6, 7, 9

driving test can be sold for $6 $7 or $9

6, 7, 9

here are all the combinations:

p,6

p,7

p,9

s,6

s,7

s,9

d,6

d,7

d,9

since out of 9 combinations driving test is the only one that is not water related lets look at that. There are only 2 combinations of driving test which are less than or equal to $7, (d,7 and d,6) hence the probability of selling no water games for less than $7 is 2/9

3 0

3 years ago

Read 2 more answers

-3m-[2m+(5-m)]+7 explain how the simplified answer: 2-4m is correct

gulaghasi [49]

Step-by-step explanation:

So what you can do is first get ride of the parentheses around 5-m so:

$-3m - (2m + 5-m)+7$