Approximation
We know that the digits of a number, one by one in order from left to right decrease in value rapidly. Let us illustrate it by examples. Mass of a gold ornament is 23.473 g. Round off to (i) two decimal places, (ii) one decimal place. 23.473 g = (2 x 10) + (h..
We know that the digits of a number, one by one in order from left to right decrease in value rapidly. Let us illustrate it by examples. Mass of a gold ornament is 23.473 g. Round off to (i) two decimal places, (ii) one decimal place. 23.473 g = (2 x 10) + (h..Introduction
We use specific number of digits to denote an exact value of a number for required accuracy. The digits used for such a purpose are called significant figures. Suppose a measurement is recorded as 0.6204 cm. It means that the measurement was made correct to t..
Rational Numbers
The rational numbers can be expressed as terminating or recurring decimals. Decimal fraction has denominator as 10 or a power of 10. A recurring decimal is denoted by placing dots or a bar over recurring digits..
Summary
1. We use specific number of digits to denote the value of a number to a certain degree of accuracy. 2. For a number between 0 and 1, the successive zeros after the decimal are not significant. 3. For a number with a deci..
Significant Figures Summary
Summary - We use specific number of digits to denote the value of a number to a certain degree of accuracy. For a number between 0 and 1, the successive zeros after the decimal are not significant. For a number with a decimal point, the final zeros ..
Summary - We use specific number of digits to denote the value of a number to a certain degree of accuracy. For a number between 0 and 1, the successive zeros after the decimal are not significant. For a number with a decimal point, the final zeros ..Summary
The following are the steps to solve a system of linear equations using Cramer's rule. Step 1: Find the value of the determinant Step 2: If D 0, then the system has unique solution, given by Where D 1 , D 2 and D 3 are the determinants obtained from D by replacing respectively the first c..
The following are the steps to solve a system of linear equations using Cramer's rule. Step 1: Find the value of the determinant Step 2: If D 0, then the system has unique solution, given by Where D 1 , D 2 and D 3 are the determinants obtained from D by replacing respectively the first c..Identify the three-digit number that has the digit 4 in the hundreds p..
Identify the three-digit number that has the digit 4 in the hundreds place, with each of the remaining digits being 7. => 477 or 470 or 774 or 747..
Identify the three-digit number that has the digit 2 in the hundreds' ..
Identify the three-digit number that has the digit 2 in the hundreds' place, with each of the remaining digits being 4. => 244 or 424 or 240 or 442..
Identify the seven-digit number that has the digit 3 in the millions p..
Identify the seven-digit number that has the digit 3 in the millions place and the digit 6 in the hundreds place, with each of the remaining digits being 5. => 5,356,555 or 3,555,..
Identify the three-digit number that has the digit 7 in the ones place..
Identify the three-digit number that has the digit 7 in the ones place, with each of the remaining digits being 1. => 177 or 111 or 1777 or 117..
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