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An arithmetic sequence |
2017-11-30 |
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yo pose la question : x; 2x+1; 11 are three consecutive terms of an arithmetic sequence.calculate x Penny Nom lui répond. |
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The derivative of f(x)=2^x/x |
2017-11-28 |
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Chhavi pose la question : f(x)=2^x/x.
Find f'(x). Penny Nom lui répond. |
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GCD |
2017-11-25 |
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A student pose la question : Suppose a,b, c are integers such that gcd(a,b)=gcd(a,c)=1. Show that gcd(a,bc)=1. Penny Nom lui répond. |
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Abstract algebra |
2017-11-25 |
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A student pose la question : Suppose a,b, c are integers such that gcd(a,b)=gcd(a,c)=1. Show that gcd(a,bc)=1. Penny Nom lui répond. |
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Exponential form |
2017-11-25 |
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Sherry pose la question : What is the exponential form of 3sqrt 15? Penny Nom lui répond. |
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10 digit permutations |
2017-11-24 |
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Ed pose la question : HI my question..
numbers1,2,3,4,5,6,7,8,9,0 how many combinations are there
example: 518, 269, 3470
example2:815,972, 3460
example3: 185,047,2369 Penny Nom lui répond. |
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Heat equation |
2017-11-23 |
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Max pose la question : What does du\dt=a(triangle)^2u mean. Can it be solved for t. Penny Nom lui répond. |
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How many miles did he drive in one hour? |
2017-11-21 |
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Ava pose la question : Graham drove 42 1/3 Miles in 1 1/3 hours. How many miles did he drive in one hour? Penny Nom lui répond. |
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An expression for the area of a triangle |
2017-11-19 |
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hari pose la question : why is area of a triangle drawn from centre of a circle i.e radii forming the sides is
1/2 *r^2 sin theta where r is radius Penny Nom lui répond. |
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Jesse has dimes and nickels in his piggy bank. |
2017-11-18 |
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Dee pose la question : Jesse has dimes and nickels in his piggy bank.
The number of nickels is 3 times the number of dimes.
If the total amount is $8.50, how many coins are there in total? Penny Nom lui répond. |
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Blair is 12 years younger than Serena right now. |
2017-11-18 |
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Dee pose la question : Blair is 12 years younger than Serena right now.
Three years ago Serena’s age was five times Blair’s age. What are their ages? Penny Nom lui répond. |
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The mass of a length of tree trunk |
2017-11-13 |
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SM pose la question : What is the mass of a length of 1m of trunk a tree trunk of uniform cross section of area 0.5 sq.m is made of wood of relative density 0.8? Penny Nom lui répond. |
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Splitting twice |
2017-11-11 |
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Terry pose la question : 4 people are splitting 1/3 of something. 1 is to receive twice as much as the other 3. what it the fractional interest for each? Penny Nom lui répond. |
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The graph of graph y= -2x-1 |
2017-11-11 |
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Natividad pose la question : How do you graph y= -2x-1? Penny Nom lui répond. |
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A triangle with sides measuring 6, 8 and 10 inches |
2017-11-11 |
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rukhsar pose la question : A certain triangle has sides, which are, respectively, 6 inches, 8 inches, and 10 inches long. A rectangle equal in area to that of the triangle has a width of 3 inches. The Perimeter of the rectangle, expressed in inches, is Penny Nom lui répond. |
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