2,563 Answered Questions for the topic Maths

09/18/17

if the point (2k-3,k+2) lies on the graph of the equation 2x+3y+15=0,find the value of k
if the point (2k-3,k+2) lies on the graph of the equation 2x+3y+15=0,find the value of k  
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09/18/17

I want to express (1+i)^11 in algebric form by using the trig functions within the process...
For some reason 1+i = root 2 * e ^ pi / 4    which i dont understand how so I would like an explanation for this...
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Maths

09/17/17

In a 20% off sale, a coat was £68. Work out the original price
In a 20% off sale, a coat was £68.  Work out the original price
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Maths Math

09/13/17

even ran 9 3/5 miles in one hour and twenty-four minutes. Find the average number of minutes it took him to complete one mile
Just some 7th grade advance math but I'm kind of stuck onthis
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09/13/17

What is the value of (1+1/2)*(1+1/3)*...*(1+1/2003)
 What is the value of (1+1/2)*(1+1/3)*...*(1+1/2003)
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Maths

09/10/17

How do you solve x = log3(77+log3(77+log3(77+...)))) ?
The original question is 3^x - x = 77. By a little simplifying, I got x = log3(77+x) and by substituting I noted that I could obtain a infinite sequence for x = log3(77+log3(77+log3(77+...)))). How... more
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Maths Mathematics

09/01/17

The area of a square is 12m² what is S, the length of the side of the square?
Please show any working out along with it please.
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Maths

09/01/17

What is loci and region and can u give me examples and explanations in your own words? Also what could I photograph as an real life loci problem
In your own words please and can u give me something I can photograph as an real life loci problem
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Maths

08/26/17

Need maths homework help!
can some tell me what 3.02 is converted to a fraction?
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Maths

08/25/17

the area of the circle is 64pie cm square find the length of its arc subtending an angle of 60 degree at the center and also the area of coresponding sector
its maths quations about trigonometry area
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08/24/17

which number has one digit that represents ten times the value of the digit to its right? 375,595 545,150 378,658
i need help with this for my nephew
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08/21/17

How much time will he save by crossing diagonally across the pen from one corner to the other instead of going around the outside?
Farmer Tom has a Bull pen that is 3500m wide by 1500m tall. He wants to cut diagonally across the pen to save time. If he walks at 5km/h how much time will he save by crossing diagonally across the... more
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Maths

08/21/17

A train left new Delhi at 5:40p.m on Sunday and reached bengaluru on Wednesday at 12:30p.m find the total duration
Student of class 7  
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08/20/17

How far horizontally has the Rocket traveled after 1 minute? Round your answer to the nearest meter.
A rocket has been fired at a 45-degree angle for 3.5 seconds. The rocket travelled in a straight line at a speed of 125m/second. 
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Maths

08/08/17

3m+2=2m+14, What is 'm'?
3m+2=2m+3 what is m?
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Maths

07/30/17

There are two trains one is220 m long and other is280m long both are traveling with a constant speed of 120km/h.how much time will they take to cross each other
How much time will they take to cross each other 
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07/29/17

how to solve integration of (3x+5)^4
how to solve integration of (3x+5)^4
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07/28/17

second derivation of x+1\x-1
second derivation of x+1\x-1
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Maths Mechanics

07/28/17

physics/mechanical question, need help with
Really unsure with this topic so could you please show working out and how its done for me, huge thank you. 1) For the shape below, showing all calculations find the centroid of the composite... more
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Maths Physics

07/28/17

Same physics question, quick fix please answer
Need help answering P2, i know the answer to part 1. Im unsure how I work out P2. I got 21271.92W as my answer, because it is a car and my answer is in watts, does that mean it is incorrect.A car... more
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Maths Physics

07/28/17

maths/physics question below, please answer
Need help answering P2, i know the answer to part 1. Im unsure how I work out P2.    A car of mass 1.5 tonnes is driving up a hill, the hill makes an angle of 10 degrees to thehorizontal, at a... more
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07/28/17

physics question below, please help
A car of mass 1 tonne travelling at 50km/h crashes into a stationary car of mass 2 tonnes on an icy road. Neglecting any frictional forces and assuming that after the initial collision the cars are... more
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07/26/17

Question in description (please answer)
A car of mass 1.5 tonnes is driving up a hill, the hill makes an angle of 10 degrees to the horizontal, at a constant 30km/h. Neglecting any friction, what is the power required from the engine to... more
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Maths

07/25/17

A cyclist travelled first five hours at an average speed of 10km per hour,
A cyclist travelled first five hours at an average speed of 10km per hour, another 2 hours at an average speed of 8 km per hour and the last 3 hours at an average speed of 12 km per hour. Find the... more
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Maths

07/25/17

What is the cost of 4.5kg of sugar at 80c per 500g
I don't understand on how to do this question is anyone willing to help  
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