Find 
. Express the answer in standard form.z1 = 20(cos 240° + i sin 240°)z2 = 4(cos 30° + i sin 30°)
A. - 
+ - 
i
B. - 
- 
i
C. - 
- 
i
D. - 
- 
i
Answer: C
Mathematics
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Add or subtract. Write the answer in lowest terms.
- 
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response.Solve the equation: (3x - 1)2 - 9(1 + x)2 = 16
Fill in the blank(s) with the appropriate word(s).
Mathematics
Use the given values of the variables to find the value of the expression.-3x - 8y + 2a for x = 3, y = 2, a = 1
A. -13 B. -23 C. -28 D. -8
Mathematics
Provide an appropriate response.Find the transpose of 
.
What will be an ideal response?
Mathematics