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Q: Do all number rules have to start from zero?
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What is the rules in finding the number and significant figures?

rules for calculating S.F. are: 1,all non zero digits r significant 2,


What are the rules in expressing the correct number significant figures?

all non zero digits are significant .2.zeroes betweenother significant.


Do all graphs start with zero?

No.


Is zero an even number?

For all practical uses of the term, zero is an even number. Only in some higher mathematics is the parity unclear.Why Zero is EvenDivision : By definition, an even number is divisible by 2, with no remainder. 0/2 = 0 with no remainder.Number Line : on the integer number line, even and odd numbers alternate, and any odd number increased or reduced by 1 is an even number.Addition : additive rules state that even + even = even, and odd + odd = even. Under these rules, zero can be even, but cannot be odd.* Do not confuse this with the fact that zero is neither positive nor negative. That has nothing to do with whether zero is odd or even. The fact that it is not positive or negative does not mean that zero is devoid of all other mathematical properties, such as evenness (parity).


Does every real numbers have a multiplicative inverse?

You can invert almost any number by dividing 1 by that number. Zero is an exception since division by zero yields the equivalent of infinity, which is difficult to deal with by the usual rules of arithmetic. We cannot really know what the product of zero and infinity is. All other real numbers can be inverted.


How is zero a real number?

Zero is a an integer and, since all integers are real numbers, zero is a real number.


What Allows you to divide both sides of a equation by the same number?

The rules of algebra: more specifically, it is the the existence of a multiplicative inverse for all non-zero values.


Is zero the smallest number?

Zero isn't the smallest number, if a number at all. Negative numbers such as -4 are smaller.


What are the rules for sifnificant figures?

1. All non zero digit are significant. 2.


What is the oxidation number for the H element?

Zero. the oxidation number of all elemnts in every form is zero


Why is it that a number multiplied by zero is always zero?

A number multiplied by zero is always zero because zero is nothing, and if you have, for an example, the number one, and you have one zero times it is nothing. Another example is if you have no money, and i say i will triple all of your money, you will still have no money.


What number do you get when you multiply all of the numbers on a telephones number pad?

The answer is Zero (0) because that is what you get when you multiply by zero, and zero is one of the numbers on the telephone keypad.