Multiple Choice
Consider the circuit shown in the figure below.The currents ( in amperes ) are the solutions to the system of linear equations
, where
are voltages of 9 and 9 volts, respectively.Use the inverse of the coefficient matrix of this system to find the unknown currents.Round answers to nearest tenth.[Hint: If a current value turns out to be negative, it simply means that the current flow is in the opposite direction from that indicated in the figure below.]
A)
B)
C)
D)
E)
Correct Answer:

Verified
Correct Answer:
Verified
Q78: The following cryptogram was encoded with a
Q79: Given <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB2036/.jpg" alt="Given ,
Q80: Use the matrix capabilities of a graphing
Q81: Find the inverse of the matrix <img
Q82: Evaluate the determinant of the matrix below.
Q84: Find A<sup>2</sup>.(Note: A<sup>2</sup> = AA.) <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB2036/.jpg"
Q85: Use matrices to solve the system of
Q86: Use the matrix capabilities of a graphing
Q87: Given <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB2036/.jpg" alt="Given ,
Q88: Write a cryptogram for the message "TWO