Write the Sum or Difference in the Standard Form a

question 180

Multiple Choice

Write the sum or difference in the standard form a + bi.
-(4 - 7i) + (5 + 4i)

• A) -9 + 3i
• B) 9 - 3i
• C) -1 + 11i
• D) 9 + 3i

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Definitions:

Pectoralis Major

A large chest muscle that plays a key role in moving the shoulder joint.

Latissimus Dorsi

A large, flat muscle on the back that helps in movement of the shoulder and arm, including extension and rotation.

Teres Major

An upper limb muscle that helps rotate and draw the arm towards the body.

Coracobrachialis

A muscle in the shoulder that assists in flexing and adducting the arm.