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bagirrra123 [75]
3 years ago
14

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

Mathematics
2 answers:
bearhunter [10]3 years ago
7 0

Answer:

The inverse is 1/2x -3/2

Step-by-step explanation:

y =2x+3

Exchange x and y

x = 2y+3

Solve for y, subtracting 3 from each side

x-3 = 2y+3-3

x-3 =2y

Divide each side by 2

(x-3)/2 = 2y/2

1/2x - 3/2 =y

The inverse is 1/2x -3/2

oksano4ka [1.4K]3 years ago
7 0

Answer:

x= x/2-3/2

Step-by-step explanation:

i hope this helps ''whole lotta love'' NUNU

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Nijah looks at the clock at the start and the end of her lesson .The lesson started at 9 and finished at 10 .How many degrees di
mrs_skeptik [129]

Answer:

360

Step-by-step explanation:

A circle has 360 degrees.

Here lesson started at 9 and finished at 10.

This means that her lesson was one hour.

A minute hand makes a full rotation in an hour.

It would have started at 12, and ended back at 12.

This means that it rotated 360 degrees.

8 0
3 years ago
Solve by graphing <br><br> u=v and 6u=2v-24
Vadim26 [7]

Answer:

u=-6 \\ \\ v=-6

Step-by-step explanation:

In this exercise, we have two equations, namely:

u=v \ and \ 6u=2v-24

And we are asked to solve this problem by graphing. In this way, we can write a system of linear equations in two variables, but first of all, let's rewrite:

u=y \\ \\ v=x

Then:

\left\{ \begin{array}{c}y=x\\6y=2x-24\end{array}\right.

So here we have two lines.

The first one is:

\boxed{y=x}

This line passes through the origin and has a slope m=1

The second one is:

6y=2x-24 \\ \\ \therefore y=\frac{2x-24}{6} \\ \\ \therefore \boxed{y=\frac{1}{3}x-4}

This line has a slope m=\frac{1}{3} and cuts the y-axis at b=-4

By using graph tools, we get the graph shown below, then:

x=-6 \\ \\ y=-6 \\ \\ \\ Since \ u=y \ and \ v=x, then: \\ \\ u=-6 \\ \\ v=-6

8 0
3 years ago
Abox in the shape of a rectangular prism, with dimensions 12 inches by 18 inches by 12 inches, can hold exactly 12
IRISSAK [1]

Answer:

48

Step-by-step explanation:

You are doubling 2 dimensions, so you just multiply the volume by 2 each time. Since you are doing it twice, you multiply the volume by 4. 12*4=48. You could also brute force it and just do 24*36*12/216(the volume of the 6 inch cube).

6 0
3 years ago
What two simpler problems can you use to find 9 x 38?
tekilochka [14]
You can use the distibutive property by breaking apart the bigger number (38) into 30 and 8. Now, you can do: (9 x 30) + (9 x 8)
I hope this helps!!! 
:D
8 0
4 years ago
Find the circumcenter of (6, -3) (-7, 6) (6, 6)
kirill115 [55]
<h3>Answer:</h3><h3>(-0.5, 1.5)</h3>

Step-by-step explanation:

7 0
3 years ago
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