An estimate, which can be obtained quickly, can sometimes be sufficient for the immediate purpose. It may be better than an exact answer which will take time.
When you wish to compare is to another number.
give me examples of estimate
yes....it would be very useful
Contact the manufacturer for an estimate if you are trying to figure depreciation over useful life.
It's useful when you can't give an accurate figure to something.
In WWII an airplane would be useful to bomb the other countries.
singing would be useful in the future to entertain people
You would use "a" before "useful" when it is followed by a consonant sound. For example, "a useful tool." You would use "an" before "useful" when it is followed by a vowel sound. For example, "an useful addition."
Initially, depreciation for financial reporting purposes is based on an owner's estimate of the useful life of the asset in service. If later, the owner has better or additional information about the true useful life of the asset, he can revise his estimate of its useful life and take all remaining depreciation (on a going-forward basis) based on the asset's revised remaining useful life.
it would be useful because they can see how the tide is going to be.
What the most useful machine is, is a matter of opinion. Some would argue that the wheel is the most useful machine, and others would argue that the lever is the most useful.
The word processing application would be most useful when writing a script or a letter. It would also be useful when writing a report. WRONG WRONG WRONG