Which expression shows (48 + 16) in the form of c(a + b) , where c is the greatest common factor of 48 and 16
1 answer:
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Answer:
Correct option: B
Step-by-step explanation:
The professor can perform a One-mean <em>t</em>-test to determine whether the average score of the students in his class is more than the average score of all the students attending university.
A <em>t</em>-test will be used instead of the <em>z</em>-test because the population standard deviation is not provided instead it is estimated by the sample standard deviation.
The hypothesis for this test can be defined as follows:
<em>H₀</em>: The average score of the students in his class is not more then the entire university, i.e. <em>μ ≤ 35</em>.
<em>Hₐ</em>: The average score of the students in his class is more then the entire university, i.e. <em>μ > 35</em>.
Given:
The test statistic is:
Thus, the correct option is (B).
Guven that the <span>distance
d that a certain particle moves may be calculated from the expression 
where a and b are constants; and t is the elapsed time.
Distance is a length and hence the dimension of distance is L.
Now,
and 
also will have the dimension of L.
</span><span>Time has a dimension of T.
For, let the dimension of 
be 
, then
For, let the dimension of 
be 
, then
Therefore, the dimension of is 
while the dimension of is 
.
</span>
Distance is a length and hence the dimension of distance is L.
Now,
</span><span>Time has a dimension of T.
For
For
Therefore, the dimension of
</span>