Having minor homework questions or simply want to make sure your homework answers are correct? Then use our free service to get quick answers to your homework questions in mathematics, physics, programming, economics, chemistry and biology. We already have a database of multiple homework questions and answers you can look through . If you can’t find the solutions to your homework problems, then post your homework questions and find a well-formulated answer from a professional within a very short timeframe.
Please save your time and DO NOT send us your full assignments or not precise, well stated questions in mathematics, physics, programming, economics, chemistry or biology as they will be ignored. In this section we can answer only your short questions of qualitative, primary theoretical nature (for FREE!). Use filters to display the questions to a particular subject or section. By entering your e-mail in the box "Search" you can browse the questions posted exclusively by you. Do not worry if you cannot find your question in the list after it has been submitted; every question is being checked by a moderator and appears in the list only after its approval.
Ask Your question
Search & Filtering
With what accuracy should the length of the equator be measured to figure out the volume of the Earth with the accuracy of 1 km³ (If consider the Earth as the ideal sphere with the radius of 64000 km)?
Sides of a rectangle are measured with an accuracy of 1 cm. With what accuracy it is possible to measure the perimeter and area of the rectangle?
How is it possible to overwrite the expressions without using the modulus sign:
a) |a²|;
b) |a − b|, if a > b;
c) |a − b|, if a < b;
d) | − a|, if a is negative?
What are the possible values of the expression (|x|/x)?
The book of 500 pages contains 50 misprints. Estimate the probability that a randomly selected page contains at least 3 misprints.
In a certain group of people there is 1% of color blind. How big a random sample should be for the probability of presence of at least one color-blind in it was not less than 0.95?
I am trying to make my calculations button calculate data and return data to a text box on a Windows Application. Could someone help me? Thank you.
I have to convolve a set of data points (counts per channel) with another set of data points (also in counts per channel). Could you please give me an idea on how to even begin to do this? I would prefer not to have to do FFT (and inverse transform...) on it as I don't know how to do that, but I could learn if there's no other way.
It is known that in average there is 1% of left-handers. Estimate the probability that at least four left-handers will be among:
a) 200 people;
b) 10000 people.
Are there two different characteristic functions that coincide on some interval containing the origin?








