₦airaland Forum

i think all of us who have castigated grant in the past (including me) should remove out hats to the guy. He deserves evry bit of respect, no matter what

its over niggas

goooooooooooooooooooooooooooooaaaaaaaaaaaaaaaaaaaaalllllllllllllllllllllllllllll

i cant understand why for the third time, we enter extra time. then in the league we will be defeatin them anyhow. or are we cursed?

bawomolo:
Solve the following equations:

[img]http://www.mc.maricopa.edu/dept/d25/math/AssetReview/COLST/Image111.gif[/img]

let me try

if u log both sides, it gives;

log 5^x = log 2^x+1
xlog 5 = x+1log 2

x/x+1 = log 2 / log 5

x/x+1 = 0.431

x = 0.431x + 0.431

x - 0.431x = 0.431

0.569x = 0.431

x = 0.76


Bawomolo,
is the question above  2 + cosine[i]²x[/i] = 3cosinex   or  2 + cosine[i](2x)[/i] = 3cosinex

I dont know if anyone posted this but its quite a laugh. its about AG's post match conference. Have a laugh.

http://soccernet.espn.go.com/news/story?id=526693&cc=5901

lightest:
good and matured question? let him wait for his time

ituen:
If u say AMEN, will it change your life in anyway?

Oops!! I struck a nerve. C'mon guys, you cant take a joke again or wot?

Somze and iice

This thread is not supposed to be an avenue for you to be passing love notes.

SAM MILLA:
OBASANJO,BABANGIDA AND ABACHA all died in a plane crash

Should we all say AMEN!! here?!!

FMK:
if someone come to you and say i have a bird into my pocket and he ask you like that. the bird i have in my pocket is alive or dead ?

what will be your reply ?

Alive or dead, it is worth two in the bush

The questions here have now gone beyond algebra.

No. We even do so to protect us or other people. For example, What happens wen armed robbers break into your house and ask for your father, would you tell them where he is?

Do yoy Think we cant do wot u do?

huxley:
Brian and Ryan are brothers. Three years ago Brian was seven times as old as Ryan. Two years ago he was four times as old. Last year he as three times as old and in two years time he will be twice as old.

How old are Brian and Ryan now?

Let brian's age be x, and ryan's age be y. Three years ago;
(x- 3) = 7(y-3)
x-3 = 7y-21
7y - x = 18 -------------------------- 1

Two years ago
x-2 = 4(y-2)
x-2 = 4y -8
4y - x = 6 --------------------------- 2

Last yr;
x - 1 = 3(y-1)
x-1 = 3y -3
3y - x = 2 --------------------------- 3

Two yr time;
x+2 = 2(y+2)
x+2 = 2y + 4
x - 2y = 2 --------------------------- 4

Pick any two eqn's and solve simultaneously. I pick 3 and 4.
Adding eqn's 3 and 4 gives;
(3y+(-2y) + ((-x) + x) = 2 + 2= 4
y = 4

Put y = 4 in eqn 4
x-2(4) = 2;
x = 10.

So Ryan(y) = 4, Brian(x) = 10


Abeg make i go baff!!!

huxley:
In seven years time the combined ages of myself and my two sons will be 89. What will it be in 9 years time?

Let your current age be x and that of your two sons be y and z.

In 7 yrs time,

(x+7) + (y+7) +(z+7) = 89
x + y +z +21 = 89
x + y + z = 89 - 21 = 68.

The 68 value is the combined age of you and your two sons right now. So in 9 yrs;
(x+9) + (y + 9) + (z + 9);
x + y +z +27.

Remember
x + y + z = 68.

So x + y +z +27 = 68 + 27 = 95

Imani:
@donchichi

Are you a mathematician? You are good. I take off my hat to you. Post "easier" questions so at least so i can contribute now.

Na my mama cause am!!!

RichyBlacK:
A red die and a green die are cast. What is the probability that the number on the red die is larger than the number on the green die?

Total number of possible events is 36. Evens that satisfy the condition above are;
(Red on the left - green on the right)

2-1                        5-3
3-1                        5-4
3-2                        6-1
4-1                        6-2
4-2                        6-3
4-3                        6-4
5-1                        6-5
5-2                    

Total = 15. Therefore probability is 15/36

RichyBlacK:
Three of every four trucks on the road are followed by a car, while only one of every five cars is followed by a truck. What fraction of vehicles on the road are trucks.

dinozzo:
has something to do with probability i think
three of every four trucks on the road followed by cars, probabilities will be = PTC and PTT

PTC = 3/4 and PTT = 1/4

one of every five cars is followed by a truck, probabilities here will be I think = PCC i.e another car following a car and PCT, a truck following a car

PCC = 4/5 and PCT = 1/5

using the chapman equation; PT = PTT x PT + PCT x PC

PC = 1-PT

PT = 1/4PT + 1/5(1-PT)

PT = 1/4PT - 1/5PT + 1/5

19/20PT = 1/5

PT = 4/19

Dinozzo,
I'm sure ur answer is correct cuz its wot i got. However, the picture is my illustration. if the numbers increase then i guess it would be wise to use the chapman equation. Please explain wot the PTC and PT and PCC and the rest acronyms mean. i was able to draw out the the scenario and i hope richyblack would acknolege my answer. it is just a capture of the question at any one time. Clearly, there are 19 cars on the road and for one in five cars there is a truck behinfd it(count from left), and for three in four trucks there is a car behind each of them. So from the pciture, the fraction of trucks on the road is 4/19. But then again if there were more than 4 trucks and 5 cars on the road , i would recommend using dinozzo's solution.

STOURH-DLRAVENS


have fun!!

anita baker?

holamiday:
do you know that 1 can be proved to be equal to 2 as follows
a(a-a)='a'squared-'a'squared
a(a-a)=(a+a)(a-a)[difference of two squares]
divide both sides by (a-a)
you get a=a+a
which is the same as a=2a
divide both sides by a you get 1=2
though 1 can never be equal to 2 in ordinary everyday mathematics, this proving is clean correct and shows in a flawlessly that 1=2. counter my proof if you dare.

Nice Try

But at a(a-a)=(a+a)(a-a)[difference of two squares], it yields 0 when a-a is executed which Zero's teh whole equation. And even when u divide botgh sides by a-a, u r actually dividing both sides by 0.

Go to control panel, click add hardware and follow instructions.

or restart ur pc

kobe:
A boot that costs x dollars is marked down by 20 percent off its original price on Monday, then an additional 10 percent on Tuesday. What is the price of the jacket, in terms of x?

After Monday, The price of the boot is x - 0.2x. After Tuesday, the price is 10% less the price after monday.
So that gives

(x-0.2x) - 0.1(x-0.2x) = 0.8x - 0.08x = 0.72x

kobe:
Given x² - y² = 77 and x + y = 11 find x?

Using Difference of two sqaures

(x+y)(x-y) = 77

Since x+y = 11

x-y = 77/11 =7

So we have
x+y = 11 -----------1
x-y = 7 -------------2

From 2, x = y +7.
So by substitution.
y + 7 + y = 11
2y = 4; y =2

And so , x = y + 7 = 9
x=9, y =2

4Him:
Start by altering your birth certificate to read 13.

ROTLMAO

We(nairalanders) train on xmas and independence days.

Imani:
1. Expand (4+2x)⁶ in ascending powers of X up to the power of X³

2. Solve the following quadratic equations 3x² + 5x -8 =0

3. X² + 2X -8 =0

1. Can be solved using some theorem i cant remember

2. (3x+(x-1) = 0 ; x = 1, x = -8/3

3. (x-2)(x+4) = 0; x = 2, x = -4

oldie:
Should it not be 3?
4x + x = 15
5x = 15
x = 3

Correct me if I am wrong

The question already said He shares out 15 sweets and the only recipient mentioned is ifeoma. So ifeoma gets all 15 sweets that was shared. If the question was rephrased as "Dele has 15 sweets", then the answer would be 3.

LearnBook:
Dele shares out 15 sweets. He gives Ifeoma 1 for every 4 he eats. How many does Ifeoma get?

15?

e be like say nairaland server don start to dey crash. Fellybabe's topic is different from this thread's own.