Mathematics: Post your doubts here!

[nomo123]

what do you guys think should be the minimum mark for an A in paper 2

 

[sohaib ul haq]

what do you guys think should be the minimum mark for an A in paper 2

60

 

[misscute406]

what do you guys think should be the minimum mark for an A in paper 2

nope it would be 75-80!!

 

[Suhayb.B]

What? I thought paper 2 was out of 70?

 

[sohaib ul haq]

nope it would be 75-80!!

paper is of 70 marks

 

[misscute406]

i meant out of 100!! grade threshold-----> above 70 to 80 percent

 

[misscute406]

out of 70 it would be above 55 i think!!

 

[nomo123]

thanks! and btw can anyone help me with part 2 of this question https://fbcdn-sphotos-c-a.akamaihd...._=1439786632_c2ea98fc441ef3b7f225741d4352e9bb

 

[NOneed2speedd]

I

Hope you understand:
https://fbcdn-sphotos-c-a.akamaihd...._=1439803102_8352f7c555435a5cc9452168318eda61

I am sorry about the part (ii)

I don't understand y u multiplied both equations by 2 in step 2

 

[sohaib ul haq]

thanks! and btw can anyone help me with part 2 of this question https://fbcdn-sphotos-c-a.akamaihd...._=1439786632_c2ea98fc441ef3b7f225741d4352e9bb

which paper is this

 

[nomo123]

apparently p4 2015

 

[NOneed2speedd]

apparently p4 2015

What's the answer?

 

[NOneed2speedd]

thanks! and btw can anyone help me with part 2 of this question https://fbcdn-sphotos-c-a.akamaihd...._=1439786632_c2ea98fc441ef3b7f225741d4352e9bb

Hope it's right

 

[Saad the Paki]

Hey.. i wanted to know that in a polygon, if 2 sides are equal, will the angles opposite to these be equal as well?
My Name can u help me out with dis?

 

[misscute406]

hey cross multiply

I

I don't understand y u multiplied both equations by 2 in step 2

 

[misscute406]

hmm if its a regular polygon then the angles will be equal!!
use the formula n(n-2)/180 to find each interior angle

Hey.. i wanted to know that in a polygon, if 2 sides are equal, will the angles opposite to these be equal as well?

 

[misscute406]

hey it is feb march 2015!! not may jun!!

apparently p4 2015

 

[nomo123]

hey it is feb march 2015!! not may jun!!

it will be similar......right?

 

[misscute406]

no paper 2 of may jun was totally different!! i got good marks in that paper but may jun was quite tough!!

 

[Saad the Paki]

hmm if its a regular polygon then the angles will be equal!!
use the formula n(n-2)/180 to find each interior angle

I know that much.. thats pretty basic... what i mean is that ANY polygon (regular or irregular)