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What is operators precedence?
Operator precedence (or, "order of operations") comes up in mathematics and computer programming and dictates which operations should be carried out first in evaluating a mathematical expression. The standard precedence used in math, science, and technology is: exponents and roots multiplication and division addition and subtraction Parentheses are also used for clarification or when the above precedence needs to be over-ridden. For example, with an expression line 3 + 2 * 4, you would start with the multiplication of 2 * 4, because multiplication has precedence over addition.
What is the efficiency is the output work is 12000 and the input work is 15000?
Efficiency as a percent is output/input * 100%12000/15000 * 100% = 80% efficiency which makes sense, because it takes more work (input) than it give out (output). So the efficiency should be less than 100%.
How many syllables in the phrase you should always be true?
The phrase 'you should always be true' has six syllables: you-should-al-ways-be-true.
How do you calculate efficiency and how is it expressed?
For efficiency, you have to consider the energy or work that you get out of the machine, compared to the energy or work that you put into the machine. Its what you get out, divided by what you put in. By multiplying the result by 100, you should then get the efficiency expressed as a percentage, which is the normal way of describe how efficient a machine or process is. efficiency = (Work out/Work in) x 100 Sometimes you are given the efficiency in a problem, but then have to calculate either the work out or work in, so then its just a case of rearranging the equation above.
Why is area always written with square units?
how should I know .
