₦airaland Forum

Olarewajub:
Prepare a serial dilution from a stock protein of 0.5g/dl as follows 10mg, 20mg, 40mg, 80mg, and 100mg (all mg/dl). Use normal diluents. Your final volume should be 2ml.

Viktoh:
i did it up dr bruv

victoristic:
i only know of two departments,economics and geography

victor247:
He's from Biochemistry

shakrullah:
Let's see how Intelligent u are: A teacher walks into d Classroom and says; If only Yesterday was Tomorrow, Today would have been a Saturday. Now on which Day did the Teacher make dis Statement

Justeenaleo:
Lmao!!
Money wey don enter government hand no dey comot any how.
I should be asking you sha because I don't know oo

Justeenaleo:
Not for guys only

Japhet04:
"Two things that helped me were adequate planning and time management. Discipline had to come into play for these two things to become a reality. I planned each day such that I knew what I was going to be doing at every point in time. With this, I was able to make every second count. However, I gave room for flexibility. I also cultivated the habit of consulting multiple texts in order to understand concepts better. This helped me to avoid mindless memorisation or “cramming”, as some people call it."

owagold:
. 3/5 *320 = 192

yorex2011:
It doesn't look 5/8...more like 7/12 if u were to use a clock as a base...

AlphaMaximus:
Are you sure u typed in all the values correctly? because the answer I have gotten is a decimal and I think I ought not to have decimals since the others are integers. Confirm please.

AlphaMaximus:
alright,here it is:
let the fluid dissipation time of the first,second and third pipes be x,y and z respectively. from the info,when work is done(the filling of the tank) jointly by the first and second pipes the time taken is equivalent to the time taken by the third pipe working independently.
mathematically,the formula for the time taken to complete work when two entities work jointly is: xy/x+y.......in that case, we have that:
xy/x+y=z.......(1)
Again,it was stated that the second pipe is 5hrs faster than the first and 18hrs slower than the third, mathematically:
y=x-5, thus x=y+5.....(2)
And,
y=z+18, thus , z= y-18...(3)
substituting (2) and (3) into (1) and simplifying, we have:
y²-36y-90=0, and solving the quadratic equation ,we have that y=38.374.....recall that x=y+5, therefore,x=38.347+5=43.347hrs......thus the time required by the first pipe is 43.347hrs......for accuracy, it's 43.34698995hrs

PROCTOR:
Nonsense,how does it even sound when they are releasing the statement. Is LASU even a university?.....NO...... i've NEVER seen it as one
how can all the actions of a so called institution be based on politics

yuncka: Am in need of help from you guys. Am nt a maths person, but my cousin came back from school wit this assignment and I cleared all of them but d mathematical aspect. Pls someone should pls help me solve it.

QUESTION:

two objects are released from a height 120meters. If the masses are 50 and 30kg respectively, calculate the time taken for the object to fall from the point of release to the ground floor(give reason for your answer).

Nielbaba: A lady bought goods worth ₦200 And paid the shopkeeper with a ₦1000 Note. The Shopkeeper had no change on him So e went 2 John his neighbour and collected ₦1000 change in ₦200
denominations, With which he settled the lady and she left. A little while later, John came back angrily after he discovered the ₦1000 note he was given by the shopkeeper was fake, And demanded a replacement. To avoid trouble, the shopkeeper had to give John another ₦1000 and destroyed the counterfeit which had no real value. Question for genius: How much has the Shopkeeper lost in
total?

dejt4u: Fortran is a bit easier to me.. I can use fortran for you if u wil nt mind..

benbuks: Enter the principle amount, interest rate, and number of years in the textboxes. When you click Calculate, the program uses the following code to display your balance for the following years.
 
Private Sub cmdCalculate_Click()
Dim principle As Double
Dim interest_rate As Double
Dim num_years As Integer
Dim i As Integer
Dim current_value As Double

lstBalances.Clear

principle = Val(txtPrinciple.Text)
interest_rate = Val(txtInterestRate.Text)
num_years = Val(txtYears.Text)

For i = 1 To num_years
current_value = principle * (1 + interest_rate) ^ i
lstBalances.AddItem i & ": " & _
vbTab & FormatCurrency(current_value)
Next i
End Sub
 
The program simply loops through the years, evaluating the compound interest formula:
balance = principle * Math.Pow(1 + interestRate, i)
Interesting tidbit: To estimate how long it will take to double your money, you can use the "Rule of 72." Divide the interest rate into 72 and the result tells you roughly how many years it will take to double your money. For example, at 7.2% it'll take about 10 years. It's a pretty decent estimate.