Maths, Addmaths and Statistics: Post your doubts here!

[Suchal Riaz]

I cant understand Where did the 18 came from???. And by the way it's cube root not square root!!

ohh sorry.
factors of 972 are 3^5 * 2². arrange them like this. 3³•3²•2². cube root mean power of 1/3 divide 3 from each power if u can. only 3 can be divided. take the three out and leave rest of them inside cuberoot. 3cuberoot(36).rest of the method is same. if u hav a gud calculator it will show u in this form when u type it.

 

[Zoya Shahab]

ohh sorry.
factors of 972 are 3^5 * 2². arrange them like this. 3³•3²•2². cube root mean power of 1/3 divide 3 from each power if u can. only 3 can be divided. take the three out and leave rest of them inside cuberoot. 3cuberoot(36).rest of the method is same. if u hav a gud calculator it will show u in this form when u type it.

Plz work out the answer!

 

[Suchal Riaz]

Plz work out the answer!

i hope i did not make silly mistakes again. i always make mistakes in tests.

 

[scouserlfc]

i hope i did not make silly mistakes again. i always make mistakes in tests.

If you do so then practice and keep practicing and whenever you get a question wrong be strict on yourself Check after you do a question by using some quick method,like in a calculator or mentally really fast this helps to reduce the errors in answer or else try to concentrate more on the question, By the way doing questions on the computer its easy to get distracted

 

[Ishrar Afrida]

View attachment 21674

You're a genius! Thanks <3

 

[aazz99]

I want to ask that in questions regarding similarity and congruency when we have to prove that two triangles are congruent so how many reasons do we have to write.....I cant understand what we have to really write to prove it and what to omit ? any suggestions.

 

[Ishaq]

There's this Question from Maths (D) November 2011 qp22. The Q9 part (b) and part (c)(iii) I cannot understand. Somebody please help me with the explanations as they are not given in the marking schemes either.

 

[AlphaBeta]

number sequences, he means. but there is no formula for that. we have to do with our own sense(if we have)

there r som formula for number sequence i read t smwer bt cnt find t

 

[aazz99]

number sequences, he means. but there is no formula for that. we have to do with our own sense(if we have)

yeah, ur right about that

There are formulas for number sequence.Check this thread: https://www.xtremepapers.com/community/threads/mathematics.4806/

 

[aazz99]

Have somone got notes for maths vectors....especially about that area ratio questions...I cant grasp them !
help please

 

[AlphaBeta]

There are formulas for number sequence.Check this thread: https://www.xtremepapers.com/community/threads/mathematics.4806/

jazakallah

 

[Ishaq]

SOmebody please shower some light on me too

 

[inquisitiveness]

Factorise 24x^2+34x-45 (2 marks)

 

[farhan141]

Factorise 24x^2+34x-45 (2 marks)

Use quadratic Equation

http://0.tqn.com/d/create/1/0/i/9/9/-/Quadratic.formula.jpg

Answers are: 0.46 OR 1.88

 

[Suchal Riaz]

Factorise 24x^2+34x-45 (2 marks)

Use quadratic Equation

http://0.tqn.com/d/create/1/0/i/9/9/-/Quadratic.formula.jpg

Answers are: 0.46 OR 1.88

read the question before solving. they want u to factorise, not solve as this is an expression not an equation.

 

[farhan141]

Omg sorry. Suchal xD

 

[Ahmed Raja]

Yaar kon kon se doubt btaoun Maths is all about doubts and problems

 

[inquisitiveness]

wow man!Thank you for your efforts both of you!!
Suchal I really appreciate it,but it was only for two marks so is that the only way or is there an easier way?

 

[Iishrak]

2(lg5) + lg5 lg20

2lg 10 + lg100
lg100 + lg100

After that I dont know.

2lg10 + lg100
base is common base 10
2(1) + lg10^2
2(1)+2lg10
2+2(1)
2+2
=4 am i correct? :S

 

[robinhoodmustafa]

2lg10 + lg100
base is common base 10
2(1) + lg10^2
2(1)+2lg10
2+2(1)
2+2
=4 am i correct? :S

Hey send me the orignal question again.