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Mathematics: Post your doubts here!

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No, it does not.
Lets check...
The equation of AB is:
3y = 5x - 1
Lets substitute (1.5,1.5) in this
3(1.5) = 5(1.5) -1
4.5 = 7.5 - 1
4.5 = 6.5
See, the equation is not satisfied.
Okay its (0.5,0.5). I got it. Thanx:)
 

XPFMember

XPRS Moderator
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Assalamoalaikum wr wb!

Angle ABC= 180-110 = 70
Angle ACB = (180-70) / 2 [since AB = BC]
=55


N point north of C

angle NCB =180 - 110 = 70

reflex angle NCB=360 - 70 = 290

290 - 55 = 235
 
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this is another doubt
Assalam-o-alaikum wr wb :)
Well…in part (a) we will use the Pythagoras theorem..i.e
BC2=192+142
BC2=557
Therefore, BC=23.6 cm

in part (b) Surface area=2*base area + (perimeter of base) * height
So 2*(0.5*14*19) + (14+19+23.6) * 36
=2303.6, rounding it off to 3 significant figures, 2300 cm2

hope it helps :D
 

ktc

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did not understood part 2
To calculate the of value of I p + 2q I ->

The square root of I [p^2] + [2q^2] I is the answer:

= [15^2 + 8^2]

= 225 + 64

= 289^½

= 17

( ^ ½ -> square root, btw)
 
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