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
dimulka [17.4K]
2 years ago
7

Use index notation to write 248 as a product of its factor

Mathematics
1 answer:
kiruha [24]2 years ago
5 0

Answer:

2^3 x 31

Step-by-step explanation:

31 is a prime number

You might be interested in
14. There are 11 boys and 10 girls in a classroom. A teacher chooses a student at random and puts that student
lutik1710 [3]

Answer:

here

Step-by-step explanation:

https://www.rcboe.org/cms/lib/GA01903614/Centricity/Domain/1351/21.2%20permutations%20and%20probability.pdf

8 0
2 years ago
Read 2 more answers
List all sets that apply to each number.
Tasya [4]
18
-3
0.9
Ugh hbd f go ihxhjf go
3 0
3 years ago
In a recent year, Washington State public school students taking a mathematics assessment test had a mean score of 276.1 and a s
Oksi-84 [34.3K]

Answer:

a) \mu_{\bar x} =\mu = 276.1

\sigma_{\bar x} =\frac{\sigma}{\sqrt{n}}=\frac{34.4}{\sqrt{64}}=4.3

b) From the central limit theorem we know that the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu=276.1, \frac{\sigma}{\sqrt{n}}=4.3)

c) P(\bar X \geq 285)=P(Z\geq \frac{285-276.1}{4.3}=2.070)

P(Z\geq2.070)=1-P(Z

Step-by-step explanation:

Let X the random variable the represent the scores for the test analyzed. We know that:

\mu=E(X) = 276.1 , \sigma=Sd(X) = 34.4

And we select a sample size of 64.

The central limit theorem states that "if we have a population with mean μ and standard deviation σ and take sufficiently large random samples from the population with replacement, then the distribution of the sample means will be approximately normally distributed. This will hold true regardless of whether the source population is normal or skewed, provided the sample size is sufficiently large".

Part a

For this case the mean and standard error for the sample mean would be given by:

\mu_{\bar x} =\mu = 276.1

\sigma_{\bar x} =\frac{\sigma}{\sqrt{n}}=\frac{34.4}{\sqrt{64}}=4.3

Part b

From the central limit theorem we know that the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu=276.1, \frac{\sigma}{\sqrt{n}}=4.3)

Part c

For this case we want this probability:

P(\bar X \geq 285)

And we can use the z score defined as:

z=\frac{\bar x -\mu}{\sigma_{\bar x}}

And using this we got:

P(\bar X \geq 285)=P(Z\geq \frac{285-276.1}{4.3}=2.070)

And using a calculator, excel or the normal standard table we have that:

P(Z\geq2.070)=1-P(Z

8 0
3 years ago
Solve the linear system using elimination.<br> 46) -2x+4y=-2<br> 6x - y=28
slamgirl [31]

Answer:

x = 5, y = 2

Step-by-step explanation:

just trust me, I used a calculator

7 0
2 years ago
A wedding planner purchased both small and large lanterns for a wedding reception. The planner purchased a total of 40 lanterns
Olegator [25]

Answer:

The wedding planner must have purchased 28 small lanterns and 12 large lanterns.

Step-by-step explanation:

8 0
2 years ago
Other questions:
  • Rewrite each of the following linear equation in equivalent y=mx+b
    13·1 answer
  • Can anyone help me to answer this....
    7·1 answer
  • Arrange the following from least to greatest 0.08,0.1, 1.8, 0.049, 0.103
    10·1 answer
  • For the equation y = 3.5x and y= 25x + 40.50, x represent time in hours and y represents cost in dollars. Which equation is not
    7·1 answer
  • Please help me asap!! <br> i’ll give you 40 points extra !!
    5·1 answer
  • 18 points for 2 questions. I really appreciate your help! :)
    6·2 answers
  • What relationship do negative three and negative six have?
    13·1 answer
  • Please help!! Show work please!!
    13·2 answers
  • Alice's average mark for 4 Science exams is 68%. Can Alice score enough marks in a fifth exam so that her average mark increases
    10·1 answer
  • Which relationships have the same constant of proportionality between y and x as the following table.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!