Answer: (a) directly with each other. If land to be uniformly fertile, then the area of land and the yield on it vary directly with each other.... View Article
Answer: (d) 45 and 1.3 Given x = 10 y = 6 since x and y vary inversely, so xy = k (constant) Putting the value of x and y, we get; 10 × 6... View Article
Answer: (c) 15 and 20 Given u = 10 v = 15 u and v vary directly, hence, u/v = k (constant) Hence, u/v = 10/15 = 2/3 Now if we observe the... View Article
Answer: The usual form of 2.39461 × 106 is 2394610. Any number can be expressed as decimal numbers between 1 and 10 multiplied by a power... View Article
Answer: The usual form of 3.41 × 106 is 3410000. Any number can be expressed as decimal numbers between 1 and 10 multiplied by a power of... View Article
Answer: The standard form of 12340000 is 1.234 × 107 Any number can be expressed as decimal numbers between 1 and 10 multiplied by a power... View Article
Answer: The standard form of (1/100000000) is 1.0 × 10-8 Any number can be expressed as decimal numbers between 1 and 10 multiplied by a... View Article
Answer: [2-1 + 3-1 + 4-1]0 = 1 Using law of exponent, a0=1 An exponent of a number represents the number of times the number is multiplied by... View Article
Answer: Very small numbers can be expressed in standard form by using negative exponents. Example: 0.000064 = 64/100000 0.000064 = 64/105 By laws... View Article
Answer: The value of (1/23)2 is equal to (1/26) By using the law of exponent (am)n = amn = (1/23)2 = (1/2)3×2 = (1/2)6 An exponent of a... View Article
Answer: 50 = 1 By using the law of exponent a0 = 1 An exponent of a number represents the number of times the number is multiplied by itself.... View Article
Answer: The multiplicative inverse of 1010 is 10-10 The multiplicative inverse of a number say N is represented by 1/N or N-1. It is also... View Article