All categories

3 years ago

Which function is the inverse of f(x) = 2x + 3?

Mathematics

1 answer:

dedylja [7]3 years ago

3 0

Answer: $\frac{x-3}{2}$

Step-by-step explanation:

$f(x)=2x+3\\y=2x+3\\x=2y+3\\x-3=2y\\\frac{x-3}{2}=y$

You might be interested in

Write each set of fractions with the lowest common denominator and then find which fraction is greater. 4/7 and 5/8 3/8 and 4/9

Elan Coil [88]

Answer:

$\frac{32}{56}\ < \frac{35}{56}$

$\frac{27}{72} \ < \frac{32}{72}$

$\frac{20}{24}\ < \frac{21}{24}$

$\frac{9}{30}\ >\frac{8}{30}$

Step-by-step explanation:

Given that,

First set of fraction is $\frac{4}{7}\ and \ \frac{5}{8}$ .

Second set of fraction is $\frac{3}{8}\ and \ \frac{4}{9}$ .

Third set of fraction is $\frac{5}{6}\ and \ \frac{7}{8}$ .

Fourth set of fraction is $\frac{3}{10}\ and \ \frac{4}{15}$ .

Now,

Considering the first set of fraction:

LCM of 7 and 8 is 56. Now, multiply by 8 to both numerator and denominator to $\frac{4}{7}$ . and multiply by 7 to both the numerator and denominator to $\frac{5}{8}$ . We get new set of fraction as $\frac{32}{56}\ and\ \frac{35}{56}$ .

∴ $\frac{32}{56}\ < \frac{35}{56}$

Again considering the second set of fraction:

LCM of 8 and 9 is 72. Now, multiply by 9 to both the numerator and denominator to $\frac{3}{8}$ . and multiply by 8 to both the numerator and denominator to $\frac{4}{9}$ . We get new set of fraction as $\frac{27}{72} \ and \ \frac{32}{72}$ .

∴ $\frac{27}{72} \ < \frac{32}{72}$ .

Again considering the third set of fraction:

LCM of 6 and 8 is 24. Now, multiply by 4 to both the numerator and denominator to $\frac{5}{6}$ . and multiply by 3 to both the numerator and denominator to $\frac{7}{8}$ . We get the new set of fraction as $\frac{20}{24}\ and \ \frac{21}{24}$ .

∴ $\frac{20}{24}\ < \frac{21}{24}$ .

Again considering the fourth set of fraction:

LCM of 10 and 15 is 30.Now, multiply by 3 to both the numerator and denominator to $\frac{3}{10}$ . and multiply by 2 to both the numerator and denominator to $\frac{4}{15}$ .We, get the new set of fraction as $\frac{9}{30}\ and \ \frac{8}{30}$ .

∴ $\frac{9}{30}\ >\frac{8}{30}$

6 0

4 years ago

Keiko runs 8 miles in 59 minutes. how many miles does she run per minute?

denis-greek [22]

Answer:

7 Minutes and 22.5 Seconds Per Mile

Step-by-step explanation:

58/8 = 7.375

Then you have to get the .375 into minutes.

0.375*60 = 22.5

4 0

3 years ago

Read 2 more answers

Select True or False.

nikitadnepr [17]

Answer:true

Step-by-step explanation:

5x-3(2x-4)=

1) solve the parentheses

5x-6x-12=0

2) we just can rest the X

5x-6x=X

3) X-12=0

4) The order of factors does not alter the product

12-X=0

3 0

3 years ago

Read 2 more answers

Each package contains 4 identical bags of rice and a 7 pound bag of beans

Taya2010 [7]

Whats the question? I cant answer the question if there is no question.

4 0

2 years ago

What is the gcf for 84

kati45 [8]

84

84 = 42 x 2

The greatest common factor is 42, because 84/2 = 42, & you want the biggest number possible

Usually i need two or more numbers so.. this is the best i can get out of one number

hope this helps tho :D

7 0

3 years ago