Type the correct answer in each box. Spell all words correctly, and use numerals instead of words for numbers, The formula for eccentricity, e, of an orbit is given below, where a is the length of the semi-major axis and b is the length of the major axis. Solve the formula for eccentricity for the length of the semi-major axis. The correct equation for the length of the semi-major axis is equation When the length of the major axis is 4 inches and the eccentricity of the orbit is 2, the length of the semi-major axis inches (round to the nearest hundredth),