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
Murrr4er [49]
2 years ago
14

Plzzzzz help show ur work to get brainiest im almost out of timeeeee

Mathematics
2 answers:
Naddika [18.5K]2 years ago
7 0

Answer:

4n^6 + 3n^4 + 5n^2

Step-by-step explanation:

9-5 = 4

7 - (-10) = 3

9 - 4 = 5

Scorpion4ik [409]2 years ago
6 0

Answer:

4n^6+3n^4+5n^2

Step-by-step explanation:

(9n^6-7n^4+9m^2)-(5n^6-10n^4+4n^2)

(9n^6-5n^6)+(7n^4+10n^4)+(9n^2-4n^2)

4n^6+3n^4+5n^2

If this helps please mark as brainliest

You might be interested in
A sociologist develops a test to measure attitudes towards public transportation, and 27 randomly selected subjects are given th
taurus [48]

Answer:

The margin of error for the 95% confidence interval for the mean score of all such subjects is of 8.45.

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 27 - 1 = 26

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 26 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.95}{2} = 0.975. So we have T = 2.0518

The margin of error is:

M = T\frac{s}{\sqrt{n}}

In which s is the standard deviation of the sample and n is the size of the sample.

In this question:

n = 27, s = 21.4. So

M = 2.0518\frac{21.4}{\sqrt{27}}

M = 8.45

The margin of error for the 95% confidence interval for the mean score of all such subjects is of 8.45.

5 0
3 years ago
Which statement below is an example of the
Hitman42 [59]

Answer:

B

Step-by-step explanation:

Let say, a=9,b=11,c=6

Then associative properties says that every element is related to each other, here "b" associates a &c.

Therefore, a is related to b+c

c is related to a+b

3 0
2 years ago
V\Researchers periodically survey a few thousand of the patients taking a certain medication in order to make connections betwee
yanalaym [24]

Answer:

The correct answer is - an observational study.

Step-by-step explanation:

It is given that, Researchers periodically survey a few thousand of the patients. These are taking specific medicine patients and researchers taking this survey to find the connection between that medication and the subjects' general health.

So, it can say that the researchers observed the patient's health by the effect of the medication, therefore, the Observational Study is the given method of gathering data.

6 0
3 years ago
Solve the equation n + 32=60​
Juli2301 [7.4K]
N would equal 28 since 60-32 is 28
6 0
3 years ago
Read 2 more answers
Solve each system by elimination<br><br> 5x+y=9<br> 10x-7y=-18<br><br> -4x+9y=9<br> x-3y=-6
tiny-mole [99]
5x + y = 9....multiply by 7
10x - 7y = -18
----------------
35x + 7y = 63 (result of multiplying by 7)
10x - 7y = -18
----------------add
45x = 45
x = 45/45
x = 1

5x + y = 9
5(1) + y = 9
5 + y = 9
y = 9 - 5
y = 4

solution is : (1,4)
=========================
-4x + 9y = 9
x - 3y = -6 ....multiply by 4
----------------
-4x + 9y = 9
4x - 12y = -24 (result of multiplying by 4)
---------------add
- 3y = - 15
y = -15/-3
y = 5

x - 3y = -6
x - 3(5) = -6
x - 15 = -6
x = -6 + 15
x = 9

solution is : (9,5)
3 0
3 years ago
Other questions:
  • What is the Slope and the Y Intercept of -3x-4y = 12
    10·1 answer
  • When 3/11 is written as a repeating decimal,which digits are repeating
    14·2 answers
  • 30 Points ill mark brainiest, please help.
    6·2 answers
  • If Joanne can paint a room in 3 hours and her sister Angela can paint the same room in 4 hours, how long (in h) would it take Jo
    5·1 answer
  • Quadrilateral TUVW is inscribed in the circle. Find m∠T, m∠U, m∠V, m∠W.
    13·1 answer
  • Identify the following fractions as either proper or improper. 8. 14⁄ 15
    10·1 answer
  • Find the coefficient of z^3 in -7xy^2z^3
    5·1 answer
  • Hannah is making cakes for the bake sale at her school. Each cake requires 1 1/2 cups of sugar. How many complete cakes can Hann
    10·2 answers
  • R144 for 12 tickets.how much per ticket?​
    14·1 answer
  • 1. Green Forest Day Camp has 43 fewer girl campers than boy campers. There are 278 boy campers. Use rounding to estimate the tot
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!