an approximation.
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estimate
The exact value of pi is the ratio of the circumference of a circle to its diameter. It cannot be printed exactly in numbers.
It cannot. It can only show square roots which represent only a small proportion of irrational numbers.
No. An irrational number is one that does not repeat or finish, and a calculator cannot display millions of digits like an irrational number would have.
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Scientists must sometimes rely on estimates when they cannot obtain exact numbers :)
Scientists must rely on estimates when they cannot obtain exact numbers.
estimate
The exact value of pi is the ratio of the circumference of a circle to its diameter. It cannot be printed exactly in numbers.
Logic, observation and mathematics. Logic for figuring things out, observation for noticing things, math for getting exact numbers.
No. In fact, a number cannot be both rational and irrational; they're mutually exclusive concepts.
Scientists use instruments called seismometers to detect and record seismic waves emitted by earthquakes. By analyzing the timing and intensity of these waves at different monitoring stations, scientists can triangulate the epicenter of the earthquake and determine its exact location.
There is no "exact". It is infinite.
The exact numbers cannot be assured but as per the report to congress there were almost 610,042 homeless people in America in January 2013.
That is the correct spelling of "exact" (precise, accurate).
There are two main situations in which you would estimate:when there is no analytical solution and the only way is to estimate a solution using iteration,when an exact answer is not required or the time or effort required to obtain an exact answer cannot be justified by the improved precision.