2 years ago

What is the inverse of the function f(x) = 2x + 1?

Mathematics

1 answer:

Schach [20]2 years ago

8 0

Answer:

The first option ,f^-1(x)=1/2*x-1/2

Step-by-step explanation:

f(x)=2x+1

y=2x+1

Interchanging the places of x and y, we get,

x=2y+1

(x-1)/2=y

f^-1(x)=(x-1)/2

f^-1(x)=1/2*x-1/2

The first option.

You might be interested in

Cameron has 480 stamps. 5/8 of them are U.S. stamps and the rest are foreign stamps. How many more U.S. stamps than foreign stam

MariettaO [177]

Answer:

120

Step-by-step explanation:

US stamps = 5/8 × 480

= 300

foreign stamps = 480- 300

= 180

more US stamps than foreign stamps = 300-180

= 120

5 0

3 years ago

What is the first velocity of the car with four washers at the 0.25 meter mark?

Scrat [10]

Answer:

.25 meter mark: 0.28

.50 meter mark: .56

Step-by-step explanation:

For the first answer you divide .25 by the average for t1. For the second answer you divide .25 by (t2-t1).

4 0

4 years ago

Read 2 more answers

Plzzz last 1 plzz help me out what does s equal

Alex_Xolod [135]

Answer:

s=16

Step-by-step explanation:

3x16=48

48/4=12

12-4=8

3 0

3 years ago

A.<br> B.<br> C.<br> D.<br> ????????????

qaws [65]

$n^{16}$ and 9 are the squares of, respectively, $n^8$ and 3.

So, using

$a^2-b^2=(a+b)(a-b)$

we have

$n^{16}-9=(n^8+3)(n^8-3)$

4 0

3 years ago

Let $\mu$ and $\sigma^2$ denote the mean and variance of the random variable x. determine $e[(x-\mu)/\sigma]$ and $e{[((x-\mu)/\

Nezavi [6.7K]

$\mathbb E\left(\dfrac{X-\mu}{\sigma}\right)=\dfrac1\sigma\mathbb E(X)-\dfrac\mu\sigma=\dfrac{\mu-\mu}\sigma=0$

$\mathbb E\bigg(\left(\dfrac{X-\mu}\sigma\right)^2\bigg)=\dfrac1{\sigma^2}\mathbb E\left(X^2-2\mu X+\mu^2\right)=\dfrac{\mathbb E(X^2)-2\mu\mathbb E(X)+\mu^2}{\sigma^2}$
$=\dfrac{\mathbb E(X^2)-2\mu^2+\mu^2}{\sigma^2}=\dfrac{\mathbb E(X^2)-\mu^2}{\sigma^2}=\dfrac{\mathbb E(X^2)-\mathbb E(X)^2}{\sigma^2}$
$=\dfrac{\mathbb V(X)}{\sigma^2}=\dfrac{\sigma^2}{\sigma^2}=1$

3 0

4 years ago