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
Inga [223]
3 years ago
11

Is the square of 4 a rational number?

Mathematics
2 answers:
oksian1 [2.3K]3 years ago
7 0

Answer:

yes

Step-by-step explanation:

it is 2

Natalka [10]3 years ago
3 0

Answer:

Yes, 4 squared is a rational number.

Step-by-step explanation:

4 squared = 4 x 4 = 16

You might be interested in
Tonya is saving money to buy a computer that costs 375$ she has $75 saved and each week she adds $25 to her savings how many wee
makvit [3.9K]

Answer: 12 weeks

Step-by-step explanation: you multiply 25x 12+75 so it’s 12 weeks

8 0
3 years ago
Read 2 more answers
D(n)= <br> 16<br> 5<br> ​ <br> (2) <br> n−1
Dmitrij [34]

Answer:

See explanation

Step-by-step explanation:

Assuming you want to find the 3rd term of the geometric progression defined explicitly by d(n)=165(2^{n-1}), then we have to substitute n=3 to obtain:

d(3)=165(2^{3-1})

This will give us:

d(3)=165(2^2)

We evaluate to obtain:

d(3)=165\times4=660

7 0
3 years ago
There are 2 people in the Hill family. Each person
Oksi-84 [34.3K]

Answer:

6

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
A researcher wants to study sports-watching behavior of young men. In a random sample of 18 young adult men 20-30 years old, eac
prohojiy [21]

Answer:

Null hypothesis: \mu \leq 50

Alternative hypothesis: \mu >50

A type of error I for this case would be reject the null hypothesis that the population proportion is lower or equal than 50 when actually is true.

So then the best option for this case is:

b. The researcher concludes that the mean amount of television watched by young men is greater than 50 (reject the null hypothesis), when the mean is really less than or equal to 50.

Step-by-step explanation:

Previous concepts

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".  

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".  

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".  

Type I error, also known as a “false positive” is the error of rejecting a null  hypothesis when it is actually true. Can be interpreted as the error of no reject an  alternative hypothesis when the results can be  attributed not to the reality.  

Type II error, also known as a "false negative" is the error of not rejecting a null  hypothesis when the alternative hypothesis is the true. Can be interpreted as the error of failing to accept an alternative hypothesis when we don't have enough statistical power.  

Solution to the problem

On this case we want to test if the mean amount of television watched daily by young men is greater than 50 minutes), so the system of hypothesis would be:

Null hypothesis:  \mu \leq 50

Alternative hypothesis: \mu >50

A type of error I for this case would be reject the null hypothesis that the population proportion is lower or equal than 50 when actually is true.

So then the best option for this case is:

b. The researcher concludes that the mean amount of television watched by young men is greater than 50 (reject the null hypothesis), when the mean is really less than or equal to 50.

5 0
3 years ago
Hope you are having a good day and please help me
SOVA2 [1]

Answer:

A and C and E

Step-by-step explanation:

Circumference is = 2*pi*r

3 0
3 years ago
Other questions:
  • the function f(x) is represented by the table bellow. What are the corresponding values of g(x) for the transformation g(x)=4f(x
    15·1 answer
  • Write a word phrase for 0.3x +5
    14·2 answers
  • Two friends, Khalid and Sue, have a combined height of 126 inches. The difference between Khalid’s height and Sue’s height is 6
    15·1 answer
  • Caleb gets newsletters by e-mail. He gets one for sports every 5 days, one for model railroads every 10 days, and one for music
    5·1 answer
  • Marge wants to build a sidewalk of uniform width around a rectangular swimming pool that is 80 feet long and 50 feet wide.she ha
    15·1 answer
  • The angles of a
    14·2 answers
  • What is the result when the number 48 is decreased by 89%?
    10·2 answers
  • HELPPPP PLSSSS 15 points and brainlist
    9·2 answers
  • 3(y - 3) = -15<br> I really need help
    5·2 answers
  • PLEASE HELP VERY URGENT!!!!!!!
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!