Mathematics: Post your doubts here!

[NotYourType]

HOW WILL THIS QUESTION BE SOLVED? I CAN"T UNDERSTAND IT?!View attachment 41343

first do 0.1/2 = 0.05
then add 0.05 to 8 for upper bound = 8.55
nd then go on to area pie * 8.55 square, thn divide the answer by pie
same thing for lower bound but instead of adding 0.05 to 8 u subtract it

 

[DeadlYxDemon]

first do 0.1/2 = 0.05
then add 0.05 to 8 for upper bound = 8.55
nd then go on to area pie * 8.55 square, thn divide the answer by pie
same thing for lower bound but instead of adding 0.05 to 8 u subtract it

Thanks I was thinking the same but I wasn't sure whether it was ryt or not...

 

[DeadlYxDemon]

wrong
upper row,first column (2x5 + 1x1)=(11)
upper row,second column (2x0 + 1x5)=(5)
second row,first column (4x5 + 6x1)=(26)
second row,second column (4x0 + 6x5)=(30)
answer is 11 5
26 30

OK! I did the same but did sme blunders . anyways What 'bout the b part??

 

[Lavinge]

6x+3<x
6x-x<-3
5x<-3
x<-3/5

x<3x+9
-9<3x-x
-9<2x
-9/2<x

all integer values between them -3/5 and -9/2

-1,-2,-3,-4

Thank you so much!

 

[Lavinge]

did u gt hw to do tht? i rmmbr doing it but seem to hve forgotten

yeah i understand how to do it now,
I know right? my maths exam is tomorrow and I've forgotten how to do stuff x_x

 

[NotYourType]

View attachment 41341
Have I done It Right? If not, plz explain.....

Q17, P22- O/N 2013

its -0.125

 

[NotYourType]

yeah i understand how to do it now,
I know right? my maths exam is tomorrow and I've forgotten how to do stuff x_x

lol same here too!!

 

[Mai(M4!)]

OK! I did the same but did sme blunders . anyways What 'bout the b part??

right but u forgot the - sign of 0.125

 

[Mai(M4!)]

Recognise properties of triangles, quadrilaterals and
circles directly related to their symmetries.

Recognise symmetry properties of the prism
(including cylinder) and the pyramid (including
cone)

what r the properties???
come on
anybody gonna answer this one?????
my exam is tomorrow

 

[Bloodserpent]

Recognise properties of triangles, quadrilaterals and
circles directly related to their symmetries.

Recognise symmetry properties of the prism
(including cylinder) and the pyramid (including
cone)

what r the properties???

Anybody help please

Triangle properties are like..
They have 3 angles and 3 sides
The interior angle of a triangle adds up to 180*
The exterior angles of a triangle adds up to 360*
Number of lines of symmetry of a triangle = 3
Order of rotational symmetry of a triangle = 2

Quadrilaterals exterior angles add up to 360* and interior angles add up to 360*, they have 4 angles and 4 sides, Number of lines of symmetry are 4 and Order of rotational symmetry is 1

Cylinders lines of symmetry is infinite from top/bot (it's a circle) and 4 from sides
Angle if symmetry is infinite from top/bot and 1 from sides


HALP.
How to
Q8,9,10 in http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s10_qp_22.pdf ?
Thanks.

 

[Mai(M4!)]

Triangle properties are like..
They have 3 angles and 3 sides
The interior angle of a triangle adds up to 180*
The exterior angles of a triangle adds up to 360*
Number of lines of symmetry of a triangle = 3
Order of rotational symmetry of a triangle = 2

Quadrilaterals exterior angles add up to 360* and interior angles add up to 360*, they have 4 angles and 4 sides, Number of lines of symmetry are 4 and Order of rotational symmetry is 1

Cylinders lines of symmetry is infinite from top/bot (it's a circle) and 2 from sides
Angle if symmetry is infinite from top/bot and 1 from sides


HALP.
How to
Q8,9,10 in http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s10_qp_22.pdf ?
Thanks.

Thanks so much

 

[Evangeline]

how do you rotate about a point thats not the origin for example Q17 may 2009 variant22

 

[NotYourType]

Triangle properties are like..
They have 3 angles and 3 sides
The interior angle of a triangle adds up to 180*
The exterior angles of a triangle adds up to 360*
Number of lines of symmetry of a triangle = 3
Order of rotational symmetry of a triangle = 2

Quadrilaterals exterior angles add up to 360* and interior angles add up to 360*, they have 4 angles and 4 sides, Number of lines of symmetry are 4 and Order of rotational symmetry is 1

Cylinders lines of symmetry is infinite from top/bot (it's a circle) and 2 from sides
Angle if symmetry is infinite from top/bot and 1 from sides


HALP.
How to
Q8,9,10 in http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s10_qp_22.pdf ?
Thanks.

9th ques - chck m.s whether correct
px = x + 3
px -x =3
x(p-1) = 3
x = 3/(p-1)

 

[NotYourType]

9th ques - chck m.s whether correct
px = x + 3
px -x =3
x(p-1) = 3
x = 3/(p-1)

sorry 10 th

 

[Mai(M4!)]

Triangle properties are like..
They have 3 angles and 3 sides
The interior angle of a triangle adds up to 180*
The exterior angles of a triangle adds up to 360*
Number of lines of symmetry of a triangle = 3
Order of rotational symmetry of a triangle = 2

Quadrilaterals exterior angles add up to 360* and interior angles add up to 360*, they have 4 angles and 4 sides, Number of lines of symmetry are 4 and Order of rotational symmetry is 1

Cylinders lines of symmetry is infinite from top/bot (it's a circle) and 2 from sides
Angle if symmetry is infinite from top/bot and 1 from side


HALP.
How to
Q8,9,10 in http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s10_qp_22.pdf ?
Thanks.

8)a)value where intersection between both is
8)b)value where the curve of sine is 0.5 higher than cos curve 0.5=10 squares then if sin is 10 squares higher than cos find the value of it

9)2m=200cm
nearest cm 200-1=199
199*32=6368cm now return it to m
6368/100=63.68

10)p=x/x + 3/x
p=1+3/x
p-1=3/x
x(p-1)=3
x=3/(p-1)

hope this helps

 

[Bloodserpent]

9th ques - chck m.s whether correct

px = x + 3

px -x =3
x(p-1) = 3
x = 3/(p-1)

"You're damn right!" W.White
How did you do it tho?
Edit: stupid of me to ask xD, got it thanks for Q10!

8)a)value where intersection between both is

8)b)value where the curve of sine is 0.5 higher than cos curve 0.5=10 squares then if sin is 10 squares higher than cos find the value of it

9)2m=200cm
nearest cm 200-1=199
199*32=6368cm now return it to m
6368/100=63.68

10)p=x/x + 3/x
p=1+3/x
p-1=3/x
x(p-1)=3
x=3/(p-1)

hope this helps

Ah Mai God
Thanks a lot.

 

[NotYourType]

f

Triangle properties are like..
They have 3 angles and 3 sides
The interior angle of a triangle adds up to 180*
The exterior angles of a triangle adds up to 360*
Number of lines of symmetry of a triangle = 3
Order of rotational symmetry of a triangle = 2

Quadrilaterals exterior angles add up to 360* and interior angles add up to 360*, they have 4 angles and 4 sides, Number of lines of symmetry are 4 and Order of rotational symmetry is 1

Cylinders lines of symmetry is infinite from top/bot (it's a circle) and 4 from sides
Angle if symmetry is infinite from top/bot and 1 from sides


HALP.
How to
Q8,9,10 in http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s10_qp_22.pdf ?
Thanks.

for 8th a) chck where the two curves meet so adding them nd subtracting them gives u zero thn check value in x axis 45

 

[NotYourType]

"You're damn right!" W.White
How did you do it tho?

HALP.
How to
Q8,9 in http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s10_qp_22.pdf ?
Thanks.

its easy bring all x terms to one side then when u see theyre common simplify it to bracket form lyk ive done nd u cn divide it by the other side

 

[NotYourType]

8)a)value where intersection between both is
8)b)value where the curve of sine is 0.5 higher than cos curve 0.5=10 squares then if sin is 10 squares higher than cos find the value of it

9)2m=200cm
nearest cm 200-1=199
199*32=6368cm now return it to m
6368/100=63.68

10)p=x/x + 3/x
p=1+3/x
p-1=3/x
x(p-1)=3
x=3/(p-1)

hope this helps

for 9th one u subtract it by 0.5
(as 1/2 = 0.5)
so its 200-0.5 =199.5
rest is correct

 

[Mai(M4!)]

"You're damn right!" W.White
How did you do it tho?
Edit: stupid of me to ask xD, got it thanks for Q10!



Ah Mai God
Thanks a lot.

anytime