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Vinvika [58]
3 years ago
14

Find the inverse of the function f(x) = 4x-1

Mathematics
2 answers:
andrew-mc [135]3 years ago
8 0

Answer:

first option

Step-by-step explanation:

let y = f(x) and rearrange making x the subject, that is

y = 4x - 1 ( add 1 to both sides )

y + 1 = 4x ( divide both sides by 4 )

\frac{y+1}{4} = x

Change y back into terms of x with x = f^{-1}(x)

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

iVinArrow [24]3 years ago
7 0
The choice one is the correct x+1/4
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a rectangle has a length of 5 cm and width 3 cm. a similar rectangle has length 7.25 cm what is the width in cm of this rectangl
zheka24 [161]
First Rectangle Area: 5 * 3=15
Second rectangle's width: 15/7.5=2
I think this is the ans 
4 0
3 years ago
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Help!!<br> What is the relationship between the corresponding angle bisectors BD and XZ?
Harrizon [31]

Answer:

XZ = 2.5 BD

Step-by-step explanation:

Comparing the two triangles,

\frac{BD}{BC} = \frac{XZ}{XY}

\frac{6}{8} = \frac{XZ}{20}

⇒ XZ = \frac{20*6}{8}

         = 15

XZ = 15

So that,

BD:XZ = 6:15

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Therefore, the relationship between BD and XZ is XZ = 2.5 BD.

8 0
3 years ago
Where is the axis on a quadrant
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Answer:

x axis and y axis divide the coordinate plane into four quadrants.

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8 0
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What is the slope of the line with points (-2,0) and (8,0)
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5 0
3 years ago
If a single card is drawn from a standard 52-card deck, what is the probability that it is an ace or a spade?
klasskru [66]

A 52-card deck is made up of an equal number of diamonds, hearts, spades, and clubs. Because there are 4 suits, there is a 1/4 chance to draw one of them, in our case, spades.

There are 4 aces in a 52-card deck, so the chance of drawing one is 4/52, or 1/13.

The question asks for the probability of drawing an ace or a spade. Because it uses the word "or," we add the probabilities together. This is because there is a chance of drawing either of the cards; it doesn't have to meet both requirements to satisfy the statement.

However, if the question were to say "and," we would multiply the two probabilities.

Let's add 1/4 and 1/13. First, we can find a common denominator. We can use 52 because both fractions can multiply into it (since the ratio came from a deck of 52 cards as well).

\frac{1}{4} -- > \frac{13}{52}

\frac{1}{13} -- > \frac{4}{52}

Now we can add them together.

\frac{13}{52} + \frac{4}{52} = \frac{13+4}{52} = \frac{17}{52}

This cannot be simplified further, so the probability is 17 in 52, or 33%.

hope this helps!

7 0
1 year ago
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