Mathematics: Post your doubts here!

[Thought blocker]

aaahhh it was so simple
genius you
thanks alot buddy!

 

[Adeen Atif]

Help required guys?
Hasnain the rocker Ayesha Asif333 Emmris hellen

 

[Emmris]

Help required guys?
Hasnain the rocker Ayesha Asif333 Emmris hellen

(i) (6 3/4 ) / (3/8) = 18 classes
(ii) 3/8 * 28 = 10 1/2 kg
(iii) 10 1/2 - 6 3/4 = 3 3/4 kg
(iv) 3/8 * 15 = 5 5/8 kg
(v) 6 3/4 - 5 5/8 = 1 1/8 kg

 

[Emmris]

Hope it helps

 

[Adeen Atif]

Hope it helps

Thanks!
Only one ans is wrong otherwise everything's correct

 

[Emmris]

Thanks!
Only one ans is wrong otherwise everything's correct

Oh sorry ...is it the last part dat is incorrect ....

 

[Adeen Atif]

Oh sorry ...is it the last part dat is incorrect ....

Nope its the first one..
No need to be sorry lol. You helped and that was really kind of you

 

[Emmris]

Nope its the first one..
No need to be sorry lol. You helped and that was really kind of you

Then wats the answer

 

[Adeen Atif]

Then wats the answer

9/14

 

[Emmris]

9/14

Ah OK I just had 2 express it as a fraction ....

 

[Ayesha Asif333]

Help required guys?
Hasnain the rocker Ayesha Asif333 Emmris hellen

I'm pretty sure you won't get this type of question in your IGCSE maths exam
Good luck!

 

[krishnapatelzz]

 

[Lee Qian Yi]

A die is biased so that the probability that is shows a six on any throw is p. The experiment is repeated and another 97% confidence interval is found. Find the probability that exactly one of two confidence intervals includes the true value of p. ANS :0.0582 How to do ?

 

[Thought blocker]

A die is biased so that the probability that is shows a six on any throw is p. The experiment is repeated and another 97% confidence interval is found. Find the probability that exactly one of two confidence intervals includes the true value of p. ANS :0.0582 How to do ?

It must be twice the value of 0.03 times 0.97

 

[Lee Qian Yi]

It must be twice the value of 0.03 times 0.97

Why ?

 

[Lee Qian Yi]

It must be twice the value of 0.03 times 0.97

Why?

 

[Thought blocker]

Why?

lol... tell me y it wont be like dat? xD
mean temme wat did u do.. like how did u try dis?

 

[A*****]

Plz anyone helpppp....how will the last 2 parts be solved?

 

[Holmes]

Oct/Nov 2007

Help me differentiate plz!

 

[studyingrobot457]

Oct/Nov 2007
View attachment 62759
Help me differentiate plz!

easy
product rule
this means
-e^(-x)*sin(x)+e^(-x)*cos(x)=0

now solve the equation