Qualification > Math

IGCSE MATHS Doubts

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Adzel:

--- Quote from: A@di on May 11, 2010, 10:39:08 am ---ur way : -8 < 4 < 1 < -0.5 = incorrect

ms way : -8 < -0.5 < 1 < 4 = correct

check ur calculations again :)

(-2)^3 = -8

(-2)^2 = 4


--- End quote ---

oops I forgot to put the brackets...thanks

Ghost Of Highbury:

--- Quote from: Adzel on May 11, 2010, 10:32:35 am ---Answer this one please too; +explaination

--- End quote ---

attached.

PQS = 80 degree.

Angle PQS = Angle PRS

the chord circumference rule.

QPR = 180 - 80 - 33 = 67 degree. (Angle Sum property)

PSQ => PXS = 147 (180-33). PSX = 180 - 147 - 21 = 12 degree. 

Adzel:

--- Quote from: Baladya on May 11, 2010, 10:44:36 am ---If we want to calculate lower and upper bound of lets say 6-4.
For upper bound we minus 6.5 minus 3.5 and for lower bound 5.5 - 4.5?

Thanks

--- End quote ---

...to the nearest what?

astarmathsandphysics:
WHOLE NUMBER

Baladya:

--- Quote from: Adzel on May 11, 2010, 10:49:46 am ---...to the nearest what?

--- End quote ---

Ya whole number... My question is that we should do it like dividing (upper bound of 1st number - lower bound of 2nd number)

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