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
Assoli18 [71]
3 years ago
13

The flow of electricity is an​

Mathematics
1 answer:
Alecsey [184]3 years ago
4 0
Electric current? Why is the thing math lol.
You might be interested in
Round 6.85565 to the nearest tenth !
emmasim [6.3K]

Answer:

It is 6.9

Step-by-step explanation:

6.85565

put

6.85

5 can be rounded up so

6.9 is answer

3 0
3 years ago
Solve for X and round to the nearest hundredth
Archy [21]

Answer:

Pretty sure it's 20.24.

Step-by-step explanation:

Since you know the side adjacent to the reference angle and you want to find the side opposite, you're going to need to use tangent, which is opp/adj.

tan(39) = \frac{x}{25}

Find the tangent of 39...

0.8097 is the approximate value. So...

0.8097 = \frac{x}{25}

Now, switch the sides to make it easier.

\frac{x}{25} = 0.8097

Multiply both sides by 25.

x = 20.24

3 0
3 years ago
Could someone please help?
elena-s [515]

Answer:

1. 7% change increase

2. 27%change decrease

3. 39% change decrease

4. 29% change increase

Step-by-step explanation:

I hope this is right

5 0
2 years ago
Assume the population has a normal distribution. A sample of 25 randomly selected students Has a mean test score of 81.5 With a
Natasha_Volkova [10]

Answer:

The 90% confidence interval for the mean test score is between 77.29 and 85.71.

Step-by-step explanation:

We have the standard deviation for the sample, so we use the t-distribution 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 = 25 - 1 = 24

90% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 24 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.9}{2} = 0.95. So we have T = 2.064

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 2.064\frac{10.2}{\sqrt{25}} = 4.21

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

The lower end of the interval is the sample mean subtracted by M. So it is 81.5 - 4.21 = 77.29

The upper end of the interval is the sample mean added to M. So it is 81.5 + 4.21 = 85.71.

The 90% confidence interval for the mean test score is between 77.29 and 85.71.

6 0
2 years ago
V = e^3 when e = 7 please help me​
Nuetrik [128]

Answer:

343

Step-by-step explanation:

7^3=7×7×7=343

If e is equal to 7 just multiply 7 by 7 and then multiply that answer by 7 to find 7 to the power of 3.

7 0
3 years ago
Other questions:
  • Solve w^2+13w+42=0 by factoring.
    5·2 answers
  • How you can know a fraction is equivalent to another fraction
    7·2 answers
  • James has 16 balloons. 1/4 of his balloons are red. how many red balloons does he hav
    14·2 answers
  • Graph the system of equations on your graph paper to answer the question.
    7·1 answer
  • Help me pleassseeeeeee
    10·1 answer
  • The midpoint of a segment is (2,-5), and one of the endpoints is (3,6). where is the other endpoint?
    15·1 answer
  • Which fraction represents this graph?
    7·1 answer
  • -8c - 6 less than or equal to 10
    13·1 answer
  • Which is the best definition for the term "segment bisector"?
    9·1 answer
  • Mark purchased a 20 foot long sub for a party he cuts the sandwich into 5/12 foot sections into how many pieces does he cut the
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!