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
agasfer [191]
3 years ago
6

How do u solve this algebra problem 5n=20

Mathematics
1 answer:
tatyana61 [14]3 years ago
3 0
5n=20 means 5 multiplied by "n" is equal to 20

20 divided by 5 equals 4

5 multiplied by 4 equals 20

n=4
You might be interested in
3. Using the sample size of 800 and the proportion 0.47, calculate the margin of error associated with the estimate of the propo
salantis [7]

Answer:

ME=1.96\sqrt{\frac{0.47 (1-0.47)}{800}}=0.0346  

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".  

The margin of error is the range of values below and above the sample statistic in a confidence interval.  

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

The population proportion have the following distribution

p \sim N(p,\sqrt{\frac{p(1-p)}{n}})

Solution to the problem

We assume for this case a confidence level of 95%. In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 95% of confidence, our significance level would be given by \alpha=1-0.95=0.05 and \alpha/2 =0.025. And the critical value would be given by:

z_{\alpha/2}=-1.96, z_{1-\alpha/2}=1.96

The confidence interval for the mean is given by the following formula:  

\hat p \pm z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}

The margin of error for the proportion interval is given by this formula:  

ME=z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}    (a)  

And if we replace the values obtained we got this:

ME=1.96\sqrt{\frac{0.47 (1-0.47)}{800}}=0.0346  

6 0
3 years ago
F(x) = x². What is g(x)?
Simora [160]

g(x) is the inverse of f(x)

f(x) = {x}^{2}

g(x) =  \sqrt{x}

8 0
2 years ago
Which of the following values of x make the following functions equal? y = 2x + 6 and
Papessa [141]

Answer:

the answers Is c. x=4

Step-by-step explanation:

do substitution 2*4+6=14

and 6*4-10=14

6 0
2 years ago
What is greater than one in 5 1/2
Ira Lisetskai [31]
I think 6 1/2,but I could be wrong so take that with a grain of salt
5 0
3 years ago
An airplane flies 2700 miles to Los Angeles to NYC. When the plane flies back to LA, is it flying in a negative direction? use a
dolphi86 [110]

Answer:

Distance = abs(-1700)

Distance = 1700 miles

Step-by-step explanation:

NYC is located East of Los Angels.

The Airplane flies from Los Angeles to the left direction from NYC.

Which is negative direction.

Therefore, distance = -1700

Here the distance cannot be negative even though if it flies in negative direction.

Therefore, we use the absolute value.

The absolute value of a number is always positive.

So, distace = abs( -1700)

Distance = 1700 miles.

Hope this will help you understand the concept.

Thank you.

5 0
3 years ago
Other questions:
  • Find the area of a rectangle with a length of (4x)^3/2 and a width of 12x^3/4
    9·1 answer
  • Malia works at a movie theater and is paid hourly. One month, she earned $388.80. The total amount she earns can be found using
    11·2 answers
  • Help its due in an hour and i cant solve this
    9·1 answer
  • BRAINLIESSTTTT!!!
    14·1 answer
  • Which table shows a decreasing linear relationship?
    12·1 answer
  • Suppose you select two numbers at random with replacement from the set {1, 2, 3} and then you form a rectangle with the first nu
    14·1 answer
  • Solve 13+x/2=3x for x
    10·2 answers
  • In need of desperate help, I'll give you a brainliest
    12·2 answers
  • Will someone, please help solve this equation?​
    9·1 answer
  • Which equation has a slope of -4 and a y-intercept of 7.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!