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The volume o a hemisphere |
2018-05-06 |
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From Sambox:
When I have a hemisphere with a volume of 700Pi m^3 what is the radius?
Answered by Penny Nom. |
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Soccer fans and cricket fans |
2018-05-06 |
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From Chibo:
In a survey of 60 sport fans, 45 enjoy soccer, 35 enjoy cricket and 10 do not enjoy either soccer or cricket, but some other sports.What percentage of sports fans enjoys both soccer and cricket?
Answered by Penny Nom. |
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A fraction |
2018-05-02 |
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From Adwin:
The denominator of a rational number is greater than its numerator by 8. If the numerator is increased by 17 the number obtained is 3 by 2. Find the number.
Answered by Penny Nom. |
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Gauss' Addition of whole numbers. |
2018-04-30 |
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From Brad:
I found this on your site. Question: what is the sum of the first 100 whole numbers??
Is there a different formula if the numbers begin at a number other than one? For example
What is the series I want to add is goes from 7 - 53?
Answered by Harley Weston. |
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Spreading soil over 10 acres |
2018-04-29 |
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From Joe:
If you have 54000 cubic yards of soil and want to spread it over 10 acres of land, by how many inches would the ground level rise?
Answered by Penny Nom. |
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The weight of a cylinder |
2018-04-27 |
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From Jared:
What is the formula for the weight of a cylinder (not hollow) made of cast iron if it has a height of 5.25 inches and a diameter of 1.75 inches?
Answered by Penny Nom. |
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Throwing a football |
2018-04-26 |
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From Abby:
Daring Danny's threw a football at an angle of 40 degrees to the horizontal. The football hit the ground at 36 feet. Danny is 5 feet 1 inch tall. Find the initial velocity
I have been trying to figure this problem out for forever! Please help! I am really confused because I don't know time either and you are supposed to find that as well as velocity.
Answered by Penny Nom. |
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A rectangular prism with rounded corners |
2018-04-25 |
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From Jackie:
Rectangular prism that is 40 by 20 with rounded corners with a radius of 2.5.
What would the surface area be?
Answered by Penny Nom. |
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More on the curvature of the Earth |
2018-04-23 |
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From will:
the formula for figuring the earth's curve goes against logic, looking at a fixed point and backup 1mi. the point drops 8" then 16" in the next mi. and 32" in the third mi. why shouldn't it be 24" why is the 8" per mi. squared can you tell me in laymens terms why this is it goes against logic it would seem the correct wat would be to add up 8" per mile as you back up from the fixed point 8"- 16"- 24"- 32" not 8/16/32/64"
Answered by Harley Weston. |
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Seven tangent circles |
2018-04-23 |
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From Domenick:
How to calculate the circumscribed and inscribed circles formed by seven .019685 diameter circles arranged in a circle with all seven circles tangent to each other?
Answered by Penny Nom. |
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A volume expression for a pyramid |
2018-04-23 |
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From Shaheer:
Do a three sided pyramid and a square pyramid have the same formula if you want to calculate the volume?
Answered by Penny Nom. |
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The distance between two men |
2018-04-21 |
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From Kristin:
If a 5 ft 6 in man gets hit at a downward 45 degree angle by a 5 ft 10 in man, how far apart are the two men? AND, would the shorter man have to be kneeling or standing? Is there a formula and answer for this question?
Answered by Penny Nom. |
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Nickels, dimes, and quarters |
2018-04-20 |
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From Patti:
A copy machine accepts nickels, dimes, and quarters. After 1 hour, there are 30 coins total, and their value is $5.10. How many nickels, quarters, and dimes are in the machine? (Hint: There are exactly five different solutions.)
Answered by Penny Nom. |
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How to find the area of triangle? |
2018-04-19 |
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From g.a:
how to find the area of triangle
Answered by Penny Nom. |
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A cone formed from a circular sector |
2018-04-18 |
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From Jessica:
A circle has a radius of 7.5cm. A sector with an angle of 240 degrees is cut out from the sector. If the sector is folded to form a cone. Find the length of the cone.
Answered by Penny Nom. |
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