DE: $(x²+4) y' + 3 xy = x$
(x²+4) y' + 3 xy = x
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Unanswered Posts
Bolt Calculation
Can you help me to solve bolt calculate? how can I find document and exercises? Please help me.
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Book value at the end of 3 years using SOYD
The first cost of a certain machine is P90,000. After 8 years it will have a salvage value of P18,000. Compute the book value at the end of 3 years by using the sum of the years digit method.
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Stuck finding out the manual solution for finding x in this logarithmic equation
Good day,
I got stuck finding the manual solution for this problem without relying to the solve function of Casio calculator
The original equation was
[(1+x)40] -1 = (181205.95/3000)x
Then I tried using properties of logarithm and I simplified it to this equation:
[ln(181205.95/3000)]/40 = ln(1+x) - (1/40)[ln(x+3000/181205.95)]
0.102526 = ln(x+1) - 0.025ln(x+0.0165557)
Answer: x = 0.02
Value of a Bond
Value of a Bond
It is defined to be the present worth of all the amounts the bondholder will receive through his possession of the bond.
The bondholder will receive two types of payments which are:
1. Single payment which the owner will receive at the date of maturity of the bond, which is usually equal to the par value of the bond; and
2. The periodic payments for interest on the bond usually it is redeemed by the issuing corporations.
Formula for value of a bond:
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Need this badly today
What work is done on a level track in bringing the velocity of a train weighing 200metric tons from zero to 45 kph, if the frictional resistance at any velocity is 45N/ton, and if the change in speed is accomplished in length of 1000m? (Ans. 26780.95 KN/m)
C. If the track were a 1% upgrade, what would be the additional work to be done?
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Applications Of Differential Equations
The radial stress p at distance r for the axis of the thick cylinder subjected to internal pressure is given by p + r (dp/dr) = A − p where A is a constant. If p = p0 at the inner wall r = r1 and is negligible (p = 0) at the outer wall r = r2 find an expression for p.
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Differential Equation xdy-[y+xy^3(1+lnx)]dx=0
Please hep me to obtain the general solution
xdy-[y+xy3(1+lnx)]dx=0
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Tension and stress of a chain lifting a beam
The 5m uniform steel beam has a mass of 600 kg and is to be lifted from the ring at B with the two chains, AB of length 3m., and CB of length 4m. a.)Determine the tension T in chain AB when the beam is clear of the platform. b.) stress if the cross-sectional area is limited to 500 mm2.
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Depletion Cost - The Percentage of Depletion Allowance Method
To develop an oil well containing 2,000,000 barrels of oil required an initial investment of PhP 30,000,000.00. In a certain year, 400,000 barrels of oil were produced from this well.
The total gross income of the oil company is PhP 34,000,000.00 for the particular year, and the taxable income after talking all deductions, except for depletion, is PhP 14,100,000.00. Determine the allowable depletion allowance for the year.
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is it not…