1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Naddika [18.5K]
4 years ago
13

What is the inverse of the function f(x) = 2x – 10?

Mathematics
1 answer:
Papessa [141]4 years ago
7 0

Answer:

(x+10)/2

Step-by-step explanation:

interchange the variables x and y

x=2y-10

solve for y

y=x+10/2

You might be interested in
Calculate the average rate of change for the function
mezya [45]

slope = m = \cfrac{rise}{run} \implies \cfrac{ f(x_2) - f(x_1)}{ x_2 - x_1}\impliedby \begin{array}{llll} average~rate\\ of~change \end{array}\\\\[-0.35em] \rule{34em}{0.25pt}\\\\ f(x)= 2(x-2)^2+1\qquad \begin{cases} x_1=-2\\ x_2=4 \end{cases}\implies \cfrac{f(4)-f(-2)}{4-(-2)} \\\\\\ \cfrac{[2(4-2)^2+1]~~ - ~~[2(-2-2)^2+1]}{4+2}\implies \cfrac{[9]~~ - ~~[33]}{6}\implies \cfrac{-24}{6}\implies -4

7 0
3 years ago
Four years after opening an account that paid simple interest of 4.25% annually, a depositor withdrew the $2,380 in interest ear
satela [25.4K]

Answer:

Step-by-step explanation:

In order to figure out how much money was left in the account after the interest was withdrawn, we have to first find out how much money was initially deposited to earn that amount of interest! The means to find that initial investment is found in the simple interest formula

prt = I, where

p is the initial investement,

r is the interest rate in decimal form,

t is the time in years, and

I is the interest earned. Notice that we have all those things but the p.

Filling in:

p(.0425)(4) = 2380 and

.17p = 2380 so

p = 14000

That means that 14000 was initially invested. If the depositor withdrew the 2380, then

14000 - 2380 is the amount left in the account, namely, $11620

7 0
3 years ago
Which of the following is not a major arc?<br> 148°
fgiga [73]
A major arc is over 180°.. minor arcs are under 180°... I think this is right
Hope this helps
6 0
3 years ago
Tameka bought three dozen donuts to take into work. There are 15 cake donuts, 6 glazed donuts, 6 chocolate donuts, and 9 blueber
Leya [2.2K]
Ratio of Cake Donuts to Total Donuts = 15/36

Let, the number of people with Cake donuts = x

Then, 15/36 = x/12

x = 12/36 * 15

x = 1/3 * 15

x = 5

In short, Your Answer would be: 5

Hope this helps!
5 0
3 years ago
Read 2 more answers
HELP!! I don't understand this at all!!!!
Lady bird [3.3K]
If your asking what type of line it is, it is linear. This is because the line is decreasing evenly or by the even amount of spaces. Hope this helped!
8 0
3 years ago
Other questions:
  • Question number# 2 letter C
    12·2 answers
  • Write another way to represent 3^-5
    8·2 answers
  • Refer to the box-and-whisker plot to answer the question.
    12·2 answers
  • In a class, 20 people live on campus and 4 people live off-campus. If we were to draw one student's name from a hat, what is the
    7·2 answers
  • What type of number is 114
    14·2 answers
  • What is the sum of -7x -4 and -4x + 13
    11·1 answer
  • Priya can bike 300 meters in 20 seconds. How many meters can she bike in 10 seconds?
    14·2 answers
  • Which quadrant is the polar coordinate, (3, 280°)​
    7·1 answer
  • Determine the volume of the picture below.
    11·2 answers
  • Find the missing side lengths Leave your answers as radicals in simplest form​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!