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A problem in base x |
2016-03-25 |
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Malith pose la question :
determine the value of base x of (211)x = (152)8
please mentioned the steps
Thank you
Penny Nom lui répond. |
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Travelling in a spacecraft |
2016-03-25 |
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julie pose la question :
if i was travelling in a spacecraft at the speed of light and i turned on my headlight would i see the beam ?
Robert Dawson lui répond. |
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A rotating schedule for a softball team |
2016-03-25 |
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Caroline pose la question :
I couldn't find a similar question, hopefully there isn't one!
I have a softball team of 18 people (7 girls and 11 boys), but am limiting each game to 13 players (6 girls and 7 boys). The season is 10 games long. How do I create a rotating schedule which allows members to play evenly? I tried separating the boys and girls to create rotation for each but I got confused. Some are unable to attend all games but for the simplicity of a rotation schedule can you please help?
Robert Dawson and Victoria West lui répond. |
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The inverse of a function |
2016-03-20 |
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Billy pose la question :
f(x) = Square root(x^2 + 2x)
What is the inverse?
Penny Nom lui répond. |
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Biking and jogging |
2016-03-17 |
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alondra pose la question :
Ricky went on a bike ride. After 6 miles he got a flat tire and had to jog home. He jogs 3mph slower than he bikes, so the jog took 1 hour longer than the bike ride. At what rate did he travel each way?
Penny Nom lui répond. |
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The perimeter of a rectangle |
2016-03-17 |
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Linda pose la question :
Noel correctly adds the length of three sides of a rectangle and gets 88 cm her brother Ryan correctly adds the lengths of three sides of the same rectangle and gets 80cm. What is the number of cm in the perimeter of the rectangle
Penny Nom lui répond. |
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A block wall |
2016-03-15 |
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Robert pose la question :
I have a wall 40 ft. long and 4 ft. tall as well as another one that is 30 ft by 3.5 ft. tall that I am trying to build. how many 6 inch by 12 inch landscaping blocks do I need?
Penny Nom lui répond. |
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The sides of a triangle |
2016-03-15 |
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Hitarth pose la question :
Why we cannot construct a triangle ofngiven sides 5cm,5cm and 10cm?
Penny Nom lui répond. |
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tan inverse 1/4 |
2016-03-14 |
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nazz pose la question :
prove; tan inverse 1/4=1/3 cot inverse 52/47
Chris Fisher lui répond. |
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Angles |
2016-03-12 |
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Laurynn pose la question :
What are angles in general (please include the 'angle of incline')
Thank you
Laurynn
Penny Nom lui répond. |
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The integral of a sum |
2016-03-10 |
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Rahul pose la question :
How to solve definite integral of a sum. The specific problem is as follows,
Integral of ( 1+ sum of x^k, k=1 to k=n), x=0 to x=b *dx.
The answer is b + sum of b^(k)/k, k=2, to k=n+1. I understand only the integral
of first term. But integral of the sum I do not understand at all.
Penny Nom lui répond. |
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A circle and a chord |
2016-03-10 |
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Mujtaba pose la question :
The distance of a chord of length 16 cm, from the centre of the circle of diameter 20 cm
Penny Nom lui répond. |
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A word problem |
2016-03-10 |
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Sam pose la question :
Jo is 10 cm taller than Ruth. Pam is 16cm taller than Ruth .Rod is 8cm taller than Pam.
How much taller than Jo is Rod?
Penny Nom lui répond. |
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An equation with fractions |
2016-03-09 |
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Ed pose la question :
7/10-___ +3/2=6/5
Penny Nom lui répond. |
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Can you construct a regular 21-gon? |
2016-03-08 |
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Peter pose la question :
hi, i know that if i use a compass to draw a circle, i can use the same setting to mark 6 intervals along the circle circumference, how would i go about marking out 21 equally spaced points around the circumference?
if there an online calculator i can us, or some other interesting trick?
tia
peter
Robert Dawson lui répond. |
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