# Posts by Dev

Total # Posts: 72

**Math**

Construct an equilateral triangle of perimeter 19.5 centimeter.Measure and verify that each angle measures 60 digrees

**Maths**

What sum of money lent at 25/2% per annum will produce the same interest in 4 years as ₹ 8560 produces in 5 years at 12% per annum.

**math**

In an examination 80% candidates passed in English and 85% candidates passed in Mathematics. If 73% candidates passed in both these subjects, then what per cent of candidates failed in both the subjects?

**sarangz**

a bus weighing 50 tonnes moving with a velocity of 60km/hr.Calculate the force required to stop it in 10 seconds.

**Science**

A car is travelling in the velocity of 20m/s.After 30 sec it covers a distance of 1200m.calculate the accelaration of the car and final velocity of the car.

**science**

22.39 l

**science**

the density of o2 at NTP is 1.429g/l.calculate standard molar volume of the gas?

**chemistry**

The measured density oe He at NTP is 0.1784g/l.what is the weight of one mole?

**science**

The measured density oe He at NTP is 0.1784g/l.what is the weight of one mole?

**science**

The density of o2 at NTP is 1.429g/l.calcute standard molar volume of gas?

**chemistry**

Determine the concentration of 20.0 mL of the sulphuric acid when 1.00 mol/L sodium hydroxide is used as the titrant. Observations: Initial volume of H2SO4 __________. Final volume of H2SO4 __________. Volume of H2SO4 added __________.

**math**

there are two supplementary angles, the difference between them is 44. I've tried many methods but can't seem to find the answer

**Maths**

Find the greatest number 6 digit exactly divisible by 24, 15, and 36

**maths**

if the product of 2 rational no. is 25/42 and one of them is -20/7 find the othr

**math**

the cost of painting the circular traffic sign shown below is $3.50 per square foot.how much,to the nearest dollar,will it cost to paint the sign if its diameter measures 36 inches?

**maths**

three resistors are connected the resistances are R2 = 2 R3= 3 R1=r r is not specified Question: Derive the total resistance of the system as an expression containing r

**math**

simplify (9-m^2)7m^3 / (3-m)14m please help i am stuck

**math**

i don't give a duk

**math**

5/12 + 2/5 = 25/60 + 24/60 = 49/60 60/60 - 49/60 = ?

**math**

11/60

**math**

the temperature at 12 noon was 10 degree Celsius above 0.decrease at the rate of 2 degree Celsius per hour until midnight at what time would temperature be 8 degree Celsius below zero? what would be temperature at mid-night?

**maths**

A wall 24m long, 0.4m thick and 6m high is constructed with the bricks each of dimensions 25cm X 16cm X 10cm. If the mortar occupies 1/10th of the volume of the wall, then find the number of bricks used in constructing the wall.

**physics**

3/4

**physics**

calculate the electric flux through the curved surface and base of a right hollow cone of height h and base radius r when charge q is placed at its vertex?

**s.s.**

"unemployment leads to wastage of man power resource" justifythe statement with suitable examples.

**s.s.**

who was the leader of the jacobin club?state any four laws indroduced by him

**s.s.**

explian the process of slavery abolition in france.

**s.s.**

what is meant by "people as resorce" ?explain how is human resource diffrent from other resorces like land and physical capital?

**s.s.**

what made pinochet unpopular in chile?

**s.s.**

state the three demands of lenin's april theses?

**social study**

explian any three factor which lead to the incident known as bloody sunday

**s.s.**

who is pinochet

**Chemistry(Please help)**

If your answer is in J then multiply -431.16 by thousand and you delta S .12529. Make sure all your unit are in J/mol K and Temperature in K.

**physics**

(60 kg)(9.8 m/S^2) = Force in Newton

**Spanish**

Prefiero usar una guía para que no me pierda. (Pierda should be subjunctive since 'para que' triggers subjunctive)

**Spanish**

Looks good!

**Physics**

Two copper blocks, each of mass 2.12 kg, initially have different temperatures,t1 = 18° C and t2 = 26° C. The blocks are placed in contact with each other and come to thermal equilibrium. No heat is lost to the surroundings (a) Find the final temperature of the blocks ...

**Physics**

(a) Find the final temperature of the blocks Find the heat transferred between them. (b) Find the entropy change of each block during the time interval in which the first joule of heat flows. Delta S1= Delta S2= (c) Estimate the entropy change of each block after it has ...

**Physics**

Two copper blocks, each of mass 2.03 kg, initially have different temperatures,t1 = 15° C and t2 = 30° C. The blocks are placed in contact with each other and come to thermal equilibrium. No heat is lost to the surroundings.

**Physics**

A uniform rectangular sign of width 51.6 cm, height 25.2 cm, and negligible thickness hangs vertically from supporting hinges attached at its upper edge.

**chemistry**

Mg + 2HNO3 = Mg(NO3)2 + H2

**Spanish**

I think you are saying i know how to play in a team.

**Physics**

A 2.20 kg mass attached to a spring oscillates with a period of 0.440 s and an amplitude of 16.5 cm. (a) Find the total mechanical energy of the system (b) Find the maximum speed of the mass

**College Chemistry**

Answer 12.93g

**College Chemistry**

50.67 divided into 55.75= .9889 Ans: 90.89%

**chemistry**

If 0.0418 grams of Mg are reacted with excess HCl, how many moles of hydrogen gas will be formed?

**math**

the white team lost 2/5 of all its games and won 39 games. how many games did they play? show and explain your work.

**science**

scientific name of flower lotus?

**Algebra I**

The expression 2(l+w) may be used to find the perimeter of a rectangle. What are the length and width of a rectangle if the area is 13 1/2 square units and the length of one side is 1/5 the measure of the perimeter?

**math**

after ploting graph for h = 1.1 + 7t - 5t^2 for interval t = 0 to t = 2. i catch a ball again when it is at height at 1.1m given the velocity of ball v in m/s given by v = 7 - 10t, find the speed of the ball when it reaches my hand.

**math**

after ploting the graph for y=1.55x+30 and y=2.75X where the cost y (£) as a function of the total number for swims x for the two options (member and non member) but question is what do the gradients and y intercepts of the lines represent in terms of the situation being...

**math**

sorted thanks

**math**

how do you solve quadratic equation 7t-5t^2 = 0 on ti-83 graphic calculator

**math**

plot graph for y = 1.55x +30 and y= 2.75x where y (£)as a function of the total number of swim x, for the option( member and non-member)what are the approx. coordinates and and what does it represent.

**Chemistry please help!**

On step 3 you divide by 2 not multiply.

**Math**

Jane lives in Middleton, where the tax rate is 2.9%. Her property is assessed at $89,000. What is her tax? Find the total tax deductions for each of the following weekly paychecks. weekly pay $98.00 $240.00 $150.00 FICA (7.65) ? ? ? Which item is more economical? 1. a $100,000...

**Bible Work**

The heathen are without excuse because? A. Nature Reveals God B. Men Rejected God when they knew him C. Men prefer sin to God D. all of these I think it is D

**language**

charactistics of mahatma gandhi

**math-help**

This sounds dumb but do I take 1000-231.05 or 231.05- 1000 If I do it on a calculator I get 768.95, if I set it up with 231.05 on top and the 1000 on the bottom I get 221.05. Something doesn't seem right.

**math-help**

The person in the word problem wants to run a total of 1000 miles in a year and within a 2 month process she ran a total of 231.05 miles, so now they are asking how many more miles she has to run in the year to reach her goal of 1000 miles. So I think I should subtract 231.05 ...

**2 math questions**

I mean separately entered already

**2 math questions**

They were below, listed separately

**2 math questions**

Can anyone help?

**math**

Thank you!

**math**

Okay so .300 is equivalent to .3, but 1 tenth is not equivalent to .01? Thanks so much.

**math**

Thank you, how about 1 tenth compared to .01 ?

**math**

can you tell me is .300 equivalent to .3 ?

**math**

So I would get 768.50 if I did it on a caluclator, but on paper, if i put 1000 on top, how do I align the 231.50 ?

**math**

Well the person in the word problem wants to run a total of 1000 miles in a year and within a 2 month process she ran a total of 231.05, so now they are asking how many more miles she has to run in the year to reach her goal of 1000 miles. So I think I should subtract 231.05 ...

**math**

Can you please tell me what you get when you subtract 1000 miles from 231.05 miles. Thanks!

**math**

Can you please tell me what do you get when you subtract 1000 miles from 231.05 miles?

**Statistics**

43c2/100c2 = 0.182

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