[center] find the value of p, if the line which passes through (-1, -p) and (-2p,2) is parallel to the line 2y+8x-17=0. [/center]

Princecalm:
Find the value of tan60"-tan30"/tan60"+tan30"

tan60=_/3
tan30= _/3/3
=(_/3 - _/3/3) / (_/3+_ 3/3)
=2_/3/3 / 4_/3/3
=2_/3/3 * 3/4_/3
= 2_/3 / 4_/3
=1/2

johnchukky:
B shaa

no its C

RobinHez:
tan60=_/3 tan30= _/3/3 =(_/3 - _/3/3) / (_/3+_ 3/3) =2_/3/3 / 4_/3/3 =2_/3/3 * 3/4_/3 = 2_/3 / 4_/3 =1/2

cool

clintonopah:
show your workings

since the half-life is every 12hrs that means the mass disintegrates into 2 , two times a day
in 2 days which is 48hrs it would have been halved 4 times.
so divide the mass by 2 four times and u get 3.125g

with a jamb score of 200 what are my chances of getting admitted to study medicine in uniben? or any course at all

Princecalm:
Find y, if sqr/12 - sqr/147+ y sqr/3 =0

2√3-7√3+y√3=0
2√3-7√3=-y√3
-5√3=-y√3
y=5.

Princecalm:
[center] find the value of p, if the line which passes through (-1, -p) and (-2p,2) is parallel to the line 2y+8x-17=0. [/center]

Y=MX+C
M=slope.
2Y=-8x+17
m=-8/2=-4
y2-y1/x2-x1=M

(2--p)/(-2p--1)=-4
2+p/-2p+1=-4
2+p=-4(-2p+1)
2+p=8p-4
2+4=8p-p
6=7p
p=6/7

medwhite0:

Y=MX+C
M=slope.
2Y=-8x+17
m=-8/2=4
y2-y1/x2-x1=M

(2--p)/(-2p--1)=4
2+p/-2p+1=4
2+p=4(-2p+1)
2+p=-8p+4
2-4=-8p-p
-2=-9p
p=2/9.

nearly!, this is to show how a mathematical sign is important in a calculation., cross-check your workings and you will realise your gradient(m) ought to be -4, but you used 4 for the calculations and it led you elsewhere.

medwhite0:
2√3-7√3+y√3=0 2√3-7√3=-y√3 -5√3=-y√3 y=5.

cool

Princecalm:
nearly!, this is to show how a mathematical sign is important in a calculation., cross-check your workings and you will realise your gradient(m) ought to be -4, but you used 4 for the calculations and it led you elsewhere.

yeah....check my working again....modified #

medwhite0:
yeah....check my working again....modified #

all right.

Princecalm:
[center] find the value of p, if the line which passes through (-1, -p) and (-2p,2) is parallel to the line 2y+8x-17=0. [/center]

7/6

RobinHez:
7/6

6/7

RobinHez:

since the half-life is every 12hrs that means the mass disintegrates into 2 , two times a day
in 2 days which is 48hrs it would have been halved 4 times.
so divide the mass by 2 four times and u get 3.125g

okay

Princecalm:
6/7

ok

6000J of heat Is delivered to 10g of dry ice at 0°C. What is the final temperature if the container has a heat capacity of 20J/K?
c of water = 4200J/kg/K, latent heat of fusion of ice = 3.33 x 10^5J/kg.

RobinHez:
ok

yea

She has been here.........the past three years A.Since B.For C.From D.In

we saw Ifueko............an egg on the wall A.smashed B.smash C.smashing D.smashes


Of course, we all saw the culprit.........and hit the man on the head A.approach B.approaches C.approaching D.to approach



Abeg who do Uniben thread this one?

medwhite0:
6000J of heat Is delivered to 10g of dry ice at 0°C. What is the final temperature if the container has a heat capacity of 20J/K?
c of water = 4200J/kg/K, latent heat of fusion of ice = 3.33 x 10^5J/kg.

i dont know

Pukka36:
She has been here.........the past three years
A.Since
B.For
C.From
D.In


we saw Ifueko............an egg on the wall
A.smashed
B.smash
C.smashing
D.smashes



Of course, we all saw the culprit.........and hit the man on the head
A.approach
B.approaches
C.approaching
D.to approach




Abeg who do Uniben thread this one?

Big-Brother-Africa BBA

RobinHez:
i dont know

I don't find interest in that aspect of physics.

RobinHez:
Big-Brother-Africa BBA

Lol,I thought of that too

Y is Ur thread as dry as Ijebu garri

Princecalm:
I don't find interest in that aspect of physics.

i dey tell u...especially when it comes to the calorimeter stories

Pukka36:
Lol,I thought of that too

Y is Ur thread as dry as Ijebu garri

you were also off for sometime.

Pukka36:
Lol,I thought of that too

Y is Ur thread as dry as Ijebu garri

i got banned two nights ago, so i cant really say much about the thread.... the way that antispam thing is going,,,i'll learn hacking o!!!

dharay99:

#watchinq#

hey boss

RobinHez:

i got banned two nights ago, so i cant really say much about the thread....
the way that antispam thing is going,,,i'll learn hacking o!!!

Hmmm,sowie!
Yeah@Prince.

dharay99:

#watchinq#

I'll put my fingers inside that Ur Segun Arinze-like eyes.