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
PilotLPTM [1.2K]
3 years ago
6

What expression is equivalent to tje alegbraic expression

Mathematics
1 answer:
Ray Of Light [21]3 years ago
6 0

Answer:

n

Step-by-step explanation:

2n - n ← factor out n from each term

= n(2 - 1)

= n × 1

= n

You might be interested in
In a sample of 100 households, the mean number of hours spent on social networking sites during the month of January was 50 hour
almond37 [142]
The confidence interval for the population mean at a 100\times(1-\alpha)\% confidence level is \mu\pm Z_{\alpha/2}\sigma_\mu. Here \mu=50 is the sample mean, Z_{\alpha/2} is the critical value such that \mathbb P(|Z|, and \sigma_\mu=\dfrac\sigma{\sqrt n}, where in turn \sigma=6 is the assumed population standard deviation and n=100 is the sample size.

First find the critical value. By the empirical rule, you might already know that about 95% of a normal distribution lies within two standard deviations of the mean, and that about 99.7% lies within three standard deviations, so you can expect Z_{\alpha/2} to lie somewhere between 2 and 3. To be more precise, you can consult a z-score table to find that Z_{\alpha/2}\approx2.3264.

Plug in everything you know and you find that the 98% confidence interval is

\left(50-2.3264\times\dfrac6{\sqrt{100}},50+2.3264\times\dfrac6{\sqrt{100}}\right)=(48.6042,51.3958)
5 0
3 years ago
How do you graph the inequality 2x - 5y is less than or equal to negative 10
Drupady [299]
Solve for y. Use 2 as your y-intercept. Graph your slope/line. Since the sign is less than or equal to your line is solid. Then you need to shade.
7 0
3 years ago
Janet has 6 red marbles, 3 blue marbles, 2 green marbles, and 1 black marble in a bag. She randomly picks one marble, keeps it o
Bad White [126]
1/3 chance :) i dont know what else to put-
5 0
3 years ago
If you’re good at geometry could somebody help me please?
olya-2409 [2.1K]

Answer:

1) The answer is in decimal since 82.8 is not a square number and does not have a proper square root. And the nearest square number to it is 81 whose root is 9 and the upcoming square number is 100 whose root is 10. So the root of 82.8 will be decimal and between 9 and 10.

2) a^2 + b^2 = c^2

14^2 + 10^2 = c^2

196 + 100 = c^2

296=c^2

root of 296 is 17.2

So, x=17.2

Here also the answer is in decimal since it is not a square number. The nearest square number to 296 is 289 whose square root is 17 and the next square number after 296 is 324 whose root is 18. So the square root of 296 will be in between 17 and 18.

5 0
3 years ago
The school band wishes to raise a minimum of $800 by selling tickets to their holiday concert. They make $3 from each student ti
aliya0001 [1]
3x+5y>800 minimum is the least 
7 0
3 years ago
Read 2 more answers
Other questions:
  • Could you guys pls be so kind and help me out❤️<br> —-<br> i promise i will mark brainliest!
    13·1 answer
  • Please help. I got an answer but I do not think it is correct.
    6·1 answer
  • A store has a sale for 15% off. You decide to buy a $45 jacket.
    14·1 answer
  • Which of these is NOT equivalent to 2^−3?<br><br> -2^3<br> 2(1/4)^2<br> 2^2 x 2^-5<br> (1/2)^3
    11·1 answer
  • Dan buys a car for £1700. It depreciates at a rate of 4% per year. How much will it be worth in 4 years? Give your answer to the
    10·1 answer
  • Given that sin x = cos 2x find the value of x​
    10·1 answer
  • 31. Roger has 50 comic books in his collection and he got 10 more. Tom has 60 comic books in his collection and he sold 10% of h
    7·2 answers
  • How much is a $99 top hat at 1/3 off
    10·1 answer
  • If a = 6, then the value of b is...
    15·1 answer
  • Pls help. !!!!!!!!!!!!!!!!!! (Give steps if you can)
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!