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
Llana [10]
3 years ago
9

If a square has a perimiter of 40 yards what is the length of one side of the square

Mathematics
1 answer:
dimaraw [331]3 years ago
4 0

Hi, my name is Julia, I'm 18.

Yesterday I broke up with a guy, I want to have fun.

If you are interested, write me here https://linktr.ee/julia.karandina

My nickname is julia_karandina

You might be interested in
Help with homework q
garik1379 [7]

Answer:

No mabey c

Step-by-step explanation:

6 0
3 years ago
What is not equivalent to each other 3/15 2/10 1/5 9/45 10/50 6/40 7/35 100/500?
Gnom [1K]
The answer is 6/40. All the others equal 1/5.
8 0
3 years ago
To the nearest tenth, what is the area of a circle whose diameter is 9 feet? Use 3.14 for π . Enter your answer in the box.
Rus_ich [418]
A=3.14*4.5^2=63.585=63.6
8 0
3 years ago
Read 2 more answers
Which is the equation of a line perpendicular to the line with the equation:<br>y = 1/4x + 2​
Wittaler [7]

Answer:

4x + y = k

Step-by-step explanation:

=> 4y = x + 8

=> x - 4y = -8

Slope = 1/4

The other line's slope = -4

4x + y = k is the answer.

4 0
3 years ago
Life Expectancies In a study of the life expectancy of people in a certain geographic region, the mean age at death was years an
Sphinxa [80]

Answer:

The probability that the mean life expectancy of the sample is less than X years is the p-value of Z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}, in which \mu is the mean life expectancy, \sigma is the standard deviation and n is the size of the sample.

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal Probability Distribution

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

We have:

Mean \mu, standard deviation \sigma.

Sample of size n:

This means that the z-score is now, by the Central Limit Theorem:

Z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

Find the probability that the mean life expectancy will be less than years.

The probability that the mean life expectancy of the sample is less than X years is the p-value of Z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}, in which \mu is the mean life expectancy, \sigma is the standard deviation and n is the size of the sample.

8 0
2 years ago
Other questions:
  • Add to find the cost of 1 day's rental
    7·1 answer
  • You have two exponential functions. One function has the formula g(x) = 3 x . The other function has the formula h(x) = 2-x . Wh
    10·1 answer
  • The function f(x) is shown in this graph<br> the function g(x) = -6x -5
    15·1 answer
  • A parabola opens down if the value of is negative in the general form of the equation.
    5·2 answers
  • 1. Choose the best property to fill in the blank:
    10·1 answer
  • Or D 51 <br> I really need help on this
    13·2 answers
  • Ten people are sitting in a row, and each is thinking of a negative integer no smaller than $-15$. Each person subtracts, from h
    14·1 answer
  • What equation of a line that has a slope of 2 and passes through point (-6,3)?
    7·1 answer
  • Someone please help I’m having trouble
    12·1 answer
  • If a cylindrical vessel is 15 cm long and its surface area is 650 cm?, set up an
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!