NCERT Class 8

119. 2^n x 2^6/2^-3 =18^2 119. 2^n x 2^6/2^-3 =18^2 August 1, 2021 Category: Chapter 12 - Exponents and Powers , Maths , NCERT Class 8 ,

118. 6^n/6^-2 = 6^3 118. 6^n/6^-2 = 6^3 August 1, 2021 Category: Chapter 12 - Exponents and Powers , Maths , NCERT Class 8 ,

117. By what number should (-3/2)^-3 be divided so that the quotient may be (4/27)^-2 ? 117. By what number should (-3/2)^-3 be divided so that the quotient may be (4/27)^-2 ? August 1, 2021 Category: Chapter 12 - Exponents and Powers , Maths , NCERT Class 8 ,

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 , [...]