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How was math created? |
2019-09-03 |
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From Phu:
How was math created?
Answered by Harley Weston. |
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A negative minus a negative |
2019-09-03 |
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From Maggie:
Why is a negative minus a negative a negative?
Answered by Penny Nom. |
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Can one equation with two variables be solved algebraically? |
2019-08-30 |
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From Don:
Can one equation with two variables be solved algebraically?
Answered by Penny Nom. |
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400 in 7.5 billion |
2019-08-28 |
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From Emma:
What is a better way to express 400 in 7.5 billion?
My daughter has a rare condition, I want to know the answer to say “she is 1 in a ...”
Answered by Penny Nom. |
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David Is 6 years older than his sister Delia |
2019-08-27 |
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From Abigail:
David Is 6 years older than his sister Delia. In 10 years the sum of There age 52. how old are David and Delia today
Answered by Penny Nom. |
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A flat top cone |
2019-08-25 |
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From Mary:
I want to make a paper model of a flat top cone with the radius of the base is 12.5 cm and the radius of the apex is 7 cm.The height is 15 cm and the radius of the apex is 5 cm. The height is 15 cm.
Can you help me with the angle and construction, please?
Thanks.
Answered by Penny Nom. |
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The length of half an acre |
2019-08-23 |
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From Angeles:
How many Feet Long In Half An Acre (Rectangle)
Answered by Penny Nom. |
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A problem with logarithms |
2019-08-23 |
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From Iriogbe:
Find the value : if log3 (a-6) =2b and log2 (a-7) =3b
Answered by Penny Nom. |
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The average height of a wall |
2019-08-15 |
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From Jeff:
Trying to figure the average height of a sloped foundation wall.
The lowest point is 24 inches or 2 feet.
The highest point is 116 inches or 9’ 8 inches.
Can this be figured without the degree of slope or can we assume it is
Equaled sloped from point a to point b. Thanks
Answered by Penny Nom. |
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The area of a shape |
2019-08-14 |
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From Lymp:
Hi, for math we are calculating the area of shapes and my teacher wanted me to research how to calculate the area of shapes so i was wondering if you could tell me how t calculate the area of any shapes. Please tell me how to calculate a cross, parallelogram and a polygon
Answered by Penny Nom. |
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A cone of maximum volume |
2019-08-14 |
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From Refilwe:
The slant height of a cone is 10cm. Determine the radius of the base so that the volume of the cone is a maximum
Answered by Penny Nom. |
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The radius of a circle of given area |
2019-08-14 |
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From shelby:
What's the radius of a circle that has an area of 803.84cm2? I also need examples of how you got the answer.
Answered by Penny Nom. |
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Conversing from tons to cubic yards |
2019-08-03 |
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From Kathleen:
Is there a simple formula to convert the following from tons to cubic yards:
Topsoil
Sand base
Fill dirt
Answered by Penny Nom. |
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Filling a hole |
2019-08-01 |
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From Jackie:
Filling a hole 25ft round 3ft deep how much dirt is needed?
Answered by Penny Nom. |
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A combination lock |
2019-08-01 |
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From markbo:
A combination lock has 0-9 plus Y on its keypad. A code is generated by selecting
4 digits from those keys (0-9 and Y) with no repeated choices,
but sequence does not matter
(i.e. 1-2-3-4 is the same as 4-3-2-1, and the same as 3-4-1-2 and counts as one combination)
How many different 4-digit codes are possible in this scenario?
Answered by Penny Nom. |
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