on an elementary school examination in spelling the mea grade of 32 boys was 72 a standard deviation of 8. while the mean grade of 36 girls was 75 with a standard deviation of 6. test the hypothesis at 0.05 and 0.01 level of significance that the girl are better in spelling than the bos
Answers
Step-by-step explanation:
The process which brings about the splitting up of ions in an electrolyte is known as electrolysis and an electrolytic cell makes use of this process. It consists of an arrangement of electrodes ( anode and cathode) immersed inside an electrolyte.A well of 14 m inside diameter is dug 15 m deep. Earth taken out is spread all around to a width of 7 m to form an embankment. Find the height of the embankment.
ANSWERAnswer:
Rohit payed the bill.
I ate a special dosa
We cycled for 5 miles
I opened the persent
They did not read the book
You did not send the parcel.
We did not agree to this issue.
They did not catch the thieves.
Did they notice us?
The boss did not appreciate the job.Rewrite the following sentences active voice
1. The bill has been paid by Rohit.
2. A special dosa has been eaten by me
3. Five miles have been cycled for us
4. The present has been opened by me
5. The book has not opened by me
6. The parcel has not been sent by you
7. This issue has not been agreed to by us
8. The thieves have not been caught by them
9. Have we been noticed by them ?
10. The job has not been appreciated by the bossThe graph of yax+b is a straight line which intersects x-axis at Rewrite the following sentences active voice
1. The bill has been paid by Rohit.
2. A special dosa has been eaten by me
3. Five miles have been cycled for us
4. The present has been opened by me
5. The book has not opened by me
6. The parcel has not been sent by you
7. This issue has not been agreed to by us
8. The thieves have not been caught by them
9. Have we been noticed by them ?
10. The job has not been appreciated by the bossAnswer:
Rohit payed the bill.
I ate a special dosa
We cycled for 5 miles
I opened the persent
They did not read the book
You did not send the parcel.
We did not agree to this issue.
They did not catch the thieves.
Did they notice us?
The boss did not appreciate the job.Given :
An equation of a straight line y = ax + b
To Find:
The point of intersection of the line with the x axis.
Solution:
We have the line y = ax + b.
We can find the x intercept in different ways.
(1) Equation for x axis is y = 0
0 = ax + b
x = -b/a
The point is ( -b/a,0)
(2) Another way is to write it in intercept form
y =ax + b
y/b + -ax/b = 1
Here y intercept is b and x intercept is -b/a
The line y = ax + b intersects x axis at exactly one point namely (-b/a,0)