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
Tanya [424]
3 years ago
13

If f(x) = 1/9 x - 2, what is f-1 (x)

Mathematics
1 answer:
Snowcat [4.5K]3 years ago
6 0

f(x) =  \frac{1}{9} x - 2 \\

f( - 1) =  \frac{1}{9} ( - 1) - 2 \\

f( - 1) =  -  \frac{1}{9}  - 2 \\

f( - 1) =  -  \frac{1}{9}  -  \frac{18}{9}  \\

f( - 1) =  -  \frac{19}{9}  \\

You might be interested in
Mr. Starnes wondered what proportion of Katy Perry's Twitter followers are
Citrus2011 [14]

Answer and Step-by-step explanation:

To calculate a confidence interval for a proportion:

1) Determine the proportion

p=\frac{308}{500}

p = 0.616

2) A 90% confidence interval has z-score that is 1.645.

3) Calculate margin of error

ME=\sqrt{\frac{p(1-p)}{n} }

where

n is the sample size

So

ME=\sqrt{\frac{0.616(1-0.616)}{500} }

ME=\sqrt{\frac{0.616(0.384)}{500} }

ME = 0.02175

Then the interval is given by

p ± z(ME)

0.62 ± 1.645(0.02175)

0.62 ± 0.035

The interval will be

0.585 < p < 0.655

What this means is that we are 90% confident that the true proportion of Katy Perry's Twitter female followers is between 0.585 and 0.655.

5 0
3 years ago
A drum has a diameter of 26 inches and is 15 inches deep. Find the volume of this drum.
Rainbow [258]

Answer: 7964.97 in³

Step-by-step explanation:

A drum is a cylinder. Therefore, we will have to calculate the volume of a cylinder which will be:

Volume = πr²h

where π = 3.142

r = Diameter/ 2 = 26/2 = 13

h = 15

Volume = πr²h

= 3.142 × 13² × 15

= 3.142 × 169 × 15

= 7964.97 in³

7 0
3 years ago
At the market, 2.4 pounds of peas cost 1.68 dollars. How much does one pound of peas cost?
babunello [35]
.7

because you need to get the original unit price which is 0.7 then multiply that by 1 and get your answer
6 0
4 years ago
Here is a square and some regular octagons.
Digiron [165]

Answer:135 degrees

Step-by-step explanation: Because a octagon equals 1080 and since there are eight sides you divide it by 8 and get 135

4 0
3 years ago
the metro train costs $6.30 round trip to ride to work each day. you work 4 days a week (16 days a month). if you can get a mont
Arlecino [84]
The first step is finding how much the metro cost to ride monthly since its a monthly pass. If she rides 16 times for 6.30 every time then you multiply them you should get 100.8. now subtract the original cost before the monthly pass to after. you should get 22.8
3 0
3 years ago
Other questions:
  • Mathematics because I’m good at math
    10·2 answers
  • Women’s weights are normally distributed with a mean given by µ = 143 lb and a standard deviation given by σ = 29 lb. Find the t
    13·1 answer
  • When I am multiplied by myself, I
    6·2 answers
  • Which answer is a solution to the inequality? 4 + (t + 2) &lt; 11
    9·1 answer
  • VERY EASY, WILL GIVE 50 POINTS FOR CORRECT ANSWER ASAP AND WILL GIVE BRAINLIEST.
    11·2 answers
  • circle centered at the origin has a radius of 5 units. The terminal side of an angle, θ, intercepts the circle in Quadrant IV at
    6·1 answer
  • What does the key term “rate” mean?
    15·2 answers
  • Elijah was six times as old as his son. In twelve years he will be twice as old as his son. How old are they now
    8·1 answer
  • the average score of the five tests was 83. The first 4 scores were 91, 78, 86, 72. What was the score of the 5th test. Thank yo
    10·1 answer
  • .325 equals what fraction
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!