Final answer:
The real part of the complex number 6.5 + 2.1i is 6.5, the imaginary part is 2.1, and the conjugate is 6.5 - 2.1i.
Step-by-step explanation:
The complex number in question is 6.5 + 2.1i. The real part of a complex number is the part that does not have the imaginary unit i. Thus, the Real part of 6.5 + 2.1i is 6.5. The Imaginary part is the coefficient of the imaginary unit, which in this case is 2.1. The complex conjugate of a complex number changes the sign of the imaginary part but leaves the real part unchanged. Therefore, the Conjugate of 6.5 + 2.1i is 6.5 - 2.1i.