The two roots of this functions are the exact roots and one is an imaginary root. The -2 is the root of a negative number -16 because if you compute the -2 on its 3rd power you come up -16, the 2 is the root of 16 and the 4+i contains a imaginary number that is why it is an imaginary root
Answer:
1 km * 1000 m / km * 100 cm / m = 10^5 cm / km
V = 4 / 3 pi R^3
V = 4 / 3 * pi * (7.01 * 10^5 * 10^5)^3 = 4 / 3 pi * 344 * (10^10)^3
V = 1.443^10^3 * 10^30 = 1.44 10^33cm^3
Explanation:
The ions are;
Al3+ Na+ Cl- (SO₄)₃²⁻
The Cations (Positive ions) are;
Al³⁺ Na⁺
The Anions (Negative ions) are;
Cl⁻ (SO₄)₃²⁻
Compounds are formed when cations are bonded to anions
NaCl - Formed by Na⁺ and Cl⁻
Al₂(SO₄)₃ - Formed by Al³⁺ and (SO₄)₃²⁻
AlCl₃ - Formed by Al³⁺ and Cl⁻
Explanation:
fractional distillation method is used to obtain petrol from petroleum...
hope it helps