z=77−27.8iWhat are the real and imaginary parts of z ?Choose 1 answer:(A)Re(z)=77 and Im(z)=−27.8(B)Re(z)=−27.8i and Im(z)=77(C)Re(z)=−27.8 and Im(z)=77(D)Re(z)=77 and Im(z)=−27.8i
Q. z=77−27.8iWhat are the real and imaginary parts of z ?Choose 1 answer:(A)Re(z)=77 and Im(z)=−27.8(B)Re(z)=−27.8i and Im(z)=77(C)Re(z)=−27.8 and Im(z)=77(D)Re(z)=77 and Im(z)=−27.8i
Identify real part: Identify the real part of the complex number.The real part of a complex number is the part without the imaginary unit i. In the complex number z=77−27.8i, the real part is 77.
Identify imaginary part: Identify the imaginary part of the complex number.The imaginary part of a complex number is the coefficient of the imaginary unit i. In the complex number z=77−27.8i, the imaginary part is −27.8 (without the i).
Match parts to answer choice: Match the real and imaginary parts to the correct answer choice.The real part is 77, and the imaginary part is −27.8. Therefore, the correct answer choice is the one that correctly states Re(z)=77 and Im(z)=−27.8.