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lapo4ka [179]
3 years ago
5

Which of the following pairs of functions are inverses of each other

Mathematics
2 answers:
g100num [7]3 years ago
7 0

Answer:

Pair of function Option B is Inverse of Each other.

Step-by-step explanation:

A).

Given function: f(x) = 6x³ + 10

To find inverse first put y = f(x) then interchange y & x and solve for y

y = f(x)

x = f(y)

x = 6y³ + 10

6y^3=x-10

y^3=\frac{x-10}{6}

y=^{\sqrt[3]{\frac{x-10}{6}}}

By comparing with given inverse function.

Its clear its not the correct option.

B).

Given function: f(x) = 4x³ + 5

To find inverse first put y = f(x) then interchange y & x and solve for y

y = f(x)

x = f(y)

x = 4y³ + 5

4y^3=x-5

y^3=\frac{x-5}{4}

y=^{\sqrt[3]{\frac{x-5}{4}}}

By comparing with given inverse function.

Its clear its the correct option.

C).

Given function: f(x) = ^{\sqrt[3]{x+3}}-5

To find inverse first put y = f(x) then interchange y & x and solve for y

y = f(x)

x = f(y)

x=^{\sqrt[3]{y+3}}-5

x+5=^{\sqrt[3]{y+3}}

(x+5)^3=y+3

(x+5)^3-3=y

By comparing with given inverse function.

Its clear its not the correct option.

D).

Given function: f(x) = (4x-3)³

To find inverse first put y = f(x) then interchange y & x and solve for y

y = f(x)

x = f(y)

x = (4y-3)³

4y-3 = ∛x

4y  = ∛x + 3

y=\frac{^{\sqrt[3]{x}}+3}{4}

By comparing with given inverse function.

Its clear its not the correct option.

Therefore, Pair of function Option B is Inverse of Each other.

tensa zangetsu [6.8K]3 years ago
3 0
I think it would be B i think i am wrong though
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Pleased help thankssss​
galben [10]

Answer:

B

Step-by-step explanation:

The square of y would look like y^2 and decreased means subtraction

So the equation now y^2-

the quotient of 8 and y would be 8/y

The full equation is y^2-8/y

6 0
3 years ago
What does tan^2(x) mean
Sever21 [200]

Answer:

Step-by-step explanation:

When the exponent is attached to the trig function like that, its essentially the same thing as taking the entire function to that power.

tan^2(x) = (tanx)^2

6 0
3 years ago
I need help with 7-14
aliina [53]
7: $200<3x-y(28) where x represents each kids money out of it and y represents the parents pay.
8: 7.00>(is greater then or equal to) 0.75X + 1.29Y where X is the amount of bagels and Y is the amount of cream cheese containers.
9: $25 + $75>4X where X is the shirts
10: 720-120>(greater then or equal to) 32X where X is the number of people in each row
11: 2400= 2100+ X(1/20) where X is the value of all things sold.
12: 2000<(X7)-668 where X is the amount of cans in one day.
13: 100> 7X - 10Y where X equals the amount of months and Y equals the amount of CD's
14: $80 - $22> (greater than or equal to) 17X where x equals the amount of shirts.

first off sorry it took so long to answer, these long word questions are time consuming and i havent done them in a while so i had to refresh my memory, secondly the equations all end where i say the word "where", thirdly i am absolutely sure of all these answers except for the first one, the first one i am pretty sure i still got it but not 100%.

hope this helps.
5 0
3 years ago
What is 14% of $59.99 and how do I figure this problem?
serious [3.7K]
Is/of =%/100 so x/59.99=14%/100 Cross multiply to get the answe
4 0
3 years ago
Read 2 more answers
PLEASE HELP!!
nasty-shy [4]
-5x+2y=6
2y=6+5x
y=5/2x + 6

x+3y=3
3y=3-x
y=-x/3+1

-2x+y=4
y=2x+4

4x+9y=-9
9y=-4x-9
y=-4/9x+1

Hope this helps.
6 0
3 years ago
Read 2 more answers
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