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
Rom4ik [11]
2 years ago
5

HELP! Which number is a rational number?

Mathematics
2 answers:
Nataly_w [17]2 years ago
5 0

Answer:

The answer is C. (square root of 49)

VashaNatasha [74]2 years ago
4 0

Answer:

its c or the square root of 49

You might be interested in
A farmer has a rectangular garden plot surrounded by 200 ft of fence. find the length and width of the garden if its area is 127
Sergio [31]
I was stuck on the same thing in my class test. I ended up failing but if I get the answers to it I’ll totally send them to you
5 0
3 years ago
Over 4 days the temperature was 4,6,-12,and -5 degrees.What was the average temperature?
Deffense [45]
The average temperature is -7.



Hope this helps
8 0
3 years ago
Is 3 squared • 4 squares = 12? Evaluate each side of the equation
Paladinen [302]
No because 4 square equals 2 square and since 3 isn't a perfect number, it would be 2 square times 3 square, which equals 6 square. 
8 0
3 years ago
Read 2 more answers
a map of South Carolina is being made to a scale of 1/2 inches equals 50 miles. Greenville is 230 miles from Myrtle beach. how f
Olin [163]
All you have to do here is multiply 230 by .5 and you get 115.

They are 115 inches apart on the map.

Hope this helped! :)
7 0
3 years ago
Read 2 more answers
In a study of cereal leaf beetle damage to oats, researchers measured the number of beetle larvae per stem in small plots of oat
PSYCHO15rus [73]

Answer:

At 0.05 level of significance, there is no difference in the mean number of larvae per stem. This supports the scientist's claim.

(d) H0: MeanMalathion - MeanNoMalathion equals 0

H1: MeanMalathion - MeanNoMalathion not equals 0

Step-by-step explanation:

Test statistic (t) = (mean 1 - mean 2) ÷ sqrt[pooled variance (1/n1 + 1/n2)]

Let the difference between the two means be x and the pooled variance be y

n1 = 5, n2 = 12

t = x ÷ sqrt[y(1/5 + 1/12)] = x ÷ sqrt(0.283y) = x ÷ 0.532√y = 1.88x/√y

Assuming the ratio of x to √y is 0.5

t = 1.88×0.5 = 0.94

n1 + n2 = 5 + 12 = 17

degree of freedom = n1 + n2 - 2 = 17 - 2 = 15

significance level = 0.05 = 5%

critical value corresponding to 15 degrees of freedom and 5% confidence interval is 2.131

The test is a two-tailed test because the alternate hypothesis is expressed using not equal to.

The region of no rejection of the null hypothesis lies between -2.131 and 2.131

Conclusion

Fail to reject the null hypothesis because the test statistic 0.94 falls within the region bounded by the critical values.

The scientist's claim is right.

A null hypothesis is a statement from a population parameter which is either rejected or accepted (fail to reject) upon testing. It is expressed using the equality sign.

An alternate hypothesis is also a statement from a population parameter which negates the null hypothesis and is accepted if the null hypothesis is rejected. It is expressed using any of the inequality signs.

3 0
3 years ago
Other questions:
  • A box is a cuboid with dimensions 28 cm by 15 cm by 20 cm all measured to the nearest centimetre. Dis cases are cuboid which mea
    5·1 answer
  • Help pls questions in attachments
    12·1 answer
  • A helicopter hovers 1250 feet
    9·1 answer
  • What is 2 1/4 as an improper fraction​
    10·2 answers
  • -2/55 divided by 4/33
    6·1 answer
  • I NEED HELP :( PLZ ASAP
    10·2 answers
  • Suppose the graph of y= x^2 translated left 2 units, and up 8 units
    14·1 answer
  • What is the area of a rectangle with a length of 3 cm and a width of 4.5 cm?
    5·1 answer
  • What is the circumference of a circle with a radius of 4cm? .​
    15·2 answers
  • A water bottle company is designing a new larger cylindrical water bottle that is intended to hold 4 times as much water as the
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!