3 years ago

If f(x)=4x-3, what is f(x)^(-1)

Mathematics

1 answer:

VladimirAG [237]3 years ago

6 0

Answer:

$f^{-1}(x)=\frac{x+3}{4}$

Step-by-step explanation:

observe by inverse definition of a function

$x=4f^{-1}(x)-3\\f^{-1}(x)=\frac{x+3}{4}$

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Talja [164]

Answer:

The answer is -4x^2

Step-by-step explanation:

-3x^2 - 5x^2 + 4x^2

= -3x^2 + -5x^2 + 4x^2

Combine like terms:

-3x^2 + -5x^2 + 4x^2

(-3x^2 + -5x^2 + 4x^2)

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If you are dealt 4 cards from a shuffled deck of 52 cards, find the probability of getting two queens and two kings.

Bingel [31]

Given:

If you are dealt 4 cards from a shuffled deck of 52 cards.

We need to determine the probability of getting two queens and two kings.

Probability of getting two queens and two kings:

The number of ways of getting two queens is $4C_2$

The number of ways of getting two kings is $4C_2$

Total number of cases is $52C_4$

The probability of getting two queens and two kings is given by

$\text {probability}=\frac{\text {No.of fanourable cases}}{\text {Total no.of cases}}$

Substituting the values, we get;

$probability=\frac{4C_2 \cdot 4C_2}{52C_4}$

Simplifying, we get;

$probability=\frac{6 (6)}{270725}$

$probability=\frac{36}{270725}$

$probability=0.000133$

Thus, the probability of getting two queens and two kings is 0.000133

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3 years ago

find the interest earned on an account with $450 principal, and interest rate of 6% over a period of 8 years

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8
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Step-by-step explanation:

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