Chapter 12 – Exponents and Powers

116. Find x so that (2/3)^3 x (2/9)^-6 = (2/9)^2x-1 116. Find x so that (2/3)^3 x (2/9)^-6 = (2/9)^2x-1 August 1, 2021 Category: Chapter 12 - Exponents and Powers , Maths , NCERT Class 8 ,

115. Express each of the following in standard form: (g) Express 2 years in seconds. (h) Express 5 hectares in cm^2 (1 hectare = 10000 m^2) 115. Express each of the following in standard form: (g) Express 2 years in seconds. (h) Express 5 hectares in cm^2 (1 hectare = 10000 m^2) August 1, 2021 [...]

115. Express each of the following in standard form: (e) Express 56 km in m. (f) Express 5 tons in g. (g) Express 2 years in seconds. (h) Express 5 hectares in cm^2 (1 hectare = 10000 m^2) 115. Express each of the following in standard form: (e) Express 56 km in m. (f) Express [...]

115. Express each of the following in standard form: (e) Express 56 km in m. (f) Express 5 tons in g. (g) Express 2 years in seconds. (h) Express 5 hectares in cm^2 (1 hectare = 10000 m^2) 115. Express each of the following in standard form: (e) Express 56 km in m. (f) Express [...]

115. Express each of the following in standard form: (a) The mass of a proton in gram is (b) A Helium atom has a diameter of 0.000000022 cm. (c) Mass of a molecule of hydrogen gas is about 0.00000000000000000000334 tons. (d) Human body has 1 trillon of cells which vary in shapes and sizes. 90. [...]

114. The number of red blood cells per cubic millimetre of blood is approximately 5.5 million. If the average body contains 5 litres of blood, what is the total number of red cells in the body? Write the standard form. 114. The number of red blood cells per cubic millimetre of blood is approximately 5.5 [...]

113. A sugar factory has annual sales of 3 billion 720 million kilograms of sugar. Express this number in the standard form. 113. A sugar factory has annual sales of 3 billion 720 million kilograms of sugar. Express this number in the standard form. August 1, 2021 Category: Chapter 12 - Exponents and Powers , [...]

112. Special balances can weigh something as 0.00000001 gram. Express this number in the standard form. 112. Special balances can weigh something as 0.00000001 gram. Express this number in the standard form. August 1, 2021 Category: Chapter 12 - Exponents and Powers , Maths , NCERT Class 8 ,

111. Pluto is 59,1,30,00, 000 m from the sun. Express this in the standard form. 00 000 m from the sun. Express this in the standard form. 1 111. Pluto is 59 30 August 1, 2021 Category: Chapter 12 - Exponents and Powers , Maths , NCERT Class 8 ,

110. Some migratory birds travel as much as 15,000 km to escape the extreme climatic conditions at home. Write the distance in metres using scientific notation. 000 km to escape the extreme climatic conditions at home. Write the distance in metres using scientific notation. 110. Some migratory birds travel as much as 15 August 1, [...]