Mathematics: Post your doubts here!

[always-smile :)]

can any1 solve this equation

 

[Muzammil100]

Q4)
It's a little tricky:


i) No. of biscuits = length of bread/diameter * breadth of bread/diameter
= 30/5 * 20/4
= 24 biscuits

ii) Remaining volume = total volume - 24(volume of one biscuit)
= 1080 - 24( pie*2.5^2*1.8) as the biscuit is a cylinder
= 232 cm^3

Thanks!

 

[GetSomeLife]

View attachment 9335 can any1 solve this equation

x^3 - 2x^2 -2x + 1 = 0
Take 1 to the other side
x^3 - 2x^2 - 2x = -1
take 'x' common
x(x^2 - 2x - 2) = -1
x^2 - 2x - 2 = -1/x
bring -1/x back here and take -2x - 2 back there
x^2 + 1/x = 2x + 2
a = 2
b = 2

 

[always-smile :)]

x^3 - 2x^2 -2x + 1 = 0
Take 1 to the other side
x^3 - 2x^2 - 2x = -1
take 'x' common
x(x^2 - 2x - 2) = -1
x^2 - 2x - 2 = -1/x
bring -1/x back here and take -2x - 2 back there
x^2 + 1/x = 2x + 2
a = 2
b = 2

wait a minute it is not 2x^2 it is only x^2

 

[Muzammil100]

wait a minute it is not 2x^2 it is only x^2

Yeah@

 

[GetSomeLife]

wait a minute it is not 2x^2 it is only x^2

ummm i didn't get you

 

[GetSomeLife]

wait a minute it is not 2x^2 it is only x^2

oh sorry my bad... still you got the method... a=1 and b=2

 

[always-smile :)]

oh sorry my bad... still you got the method... a=1 and b=2

nvm .... so we can solve it with the same methode and it will give x instead of -2x right??

 

[сᴏᴏʟ сяуѕтᴀʟѕ]

could u help me with these question??

Assalam-o-alaikum wr wb...


Hope it helps

 

[GetSomeLife]

nvm .... so we can solve it with the same methode and it will give x instead of -2x right??

yes

 

[always-smile :)]

yes

thnx aloot

 

[Muzammil100]

Assalam-o-alaikum wr wb...
View attachment 9339View attachment 9340View attachment 9342

Hope it helps

Hey how did you solve it? Which software or website?

 

[Muzammil100]

Whats the formula for speed volume and time?

 

[sma786]

Learn these 2 formulas:

1) This formula can only be applied if the difference is constant between the first and the second, second and third etc.
nth term = a + d (n - 1)
where:
'a' is the FIRST term
'd' is the DIFFERENCE between the terms


2) This formula can only be applied if, in simple terms, the first term is multiplied by a number to get the second term... and the second term is multiplied by the same number to get the third and so on:
nth term = ar^(n-1)
'a' is the FIRST term
'r' is the number they are being multiplied with
1, 2, 4, 8, 16 (for instance)
1*2^(n-1)
= 2^(n-1) Answer


There are many questions you can't solve even when you know these sequences. For that, you need to use some common sense and the sequences already given

lol thanks ! yeah thats the problem.. i dun hav mch common sense

 

[сᴏᴏʟ сяуѕтᴀʟѕ]

Hey how did you solve it? Which software or website?

Microsoft word...

Whats the formula for speed volume and time?

didn't get it
you want a formula for each of them?

 

[always-smile :)]

Whats the formula for speed volume and time?

speed = total distance / total time
volume for which shape??

 

[always-smile :)]

lol thanks ! yeah thats the problem.. i dun hav mch common sense

did you knw how to get the distance due to east??

 

[сᴏᴏʟ сяуѕтᴀʟѕ]

speed = total distance / total time
volume for which shape??

i was wondering how is he interconnecting those 3 together

anyway...volume = mass/density

 

[sma786]

did you knw how to get the distance due to east??

What ?? which question r u talkng abt ?

 

[always-smile :)]

What ?? which question r u talkng abt ?

w08 Q5 e