Find the sum or difference. Write the answer in standard form, a + bi.(5 - 4i) + (9 + 6i)
A. 14 + 2i
B. 14 - 2i
C. -14 - 2i
D. -4 + 10i
Answer: A
You might also like to view...
A manufacturer of doors, windows, and cabinets writes her yearly profit (in thousands of dollars) for each category in a vector as: 
Her fixed costs of production can be described by the vector: 
Use the matrix operations on a graphing calculator to find her income if increasing it by 20% would cause an increase in profit of 50%. (Round to the nearest thousand dollars.)
What will be an ideal response?
Use a sum-to-product identity to rewrite the expression.cos 11° - cos 39°
A. -2cos 25.0o cos (-14.0°) B. -2cos 25.0o sin (-14.0°) C. -2sin 25.0° cos (-14.0°) D. -2sin 25.0° sin (-14.0°)
Solve the problem.Determine whether the ordered triple (2, 8, -3) is a solution of the system of equations.3x - 4y - 2z = -204x + y - z = 19 x - 2y + 3z = -23
A. Yes B. No
Write a quadratic equation in standard form with the given solution set.{-
, 
}
A. x2 + 2
x - 3 = 0
B. x2 + 3 = 0
C. x2 - 2
x + 3 = 0
D. x2 - 3 = 0