Decide whether the situation involves permutations or combinations.A blend of 4 spices taken from 6 spices on a spice rack.
A. Permutation
B. Combination
Answer: B
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Find all the complex roots. Write the answer in the indicated form.The complex cube roots of 8 (rectangular form)
A. 2, 1 + 
i, -1 - 
i
B. 2, 1 + 
i, 1 - 
i
C. 2, -1 - 
i, 1 - 
i
D. 2, -1 + 
i, -1 - 
i
Find the indicated root and express the answer in standard form.Cube roots of -8i
A. 2i, - 
- i, 
- i
B. -2i, 
- i, 
- i
C. -2i, 
+ i, 
+ i
D. 2i, - 
+ i, - 
+ i
Multiply. Write the answer in simplest form.
? 
A. 
B. 
C. 
D. 
Graph the polar equation.r = 
Identify the directrix and vertices. 
A. directrix: 2 unit(s) below
the pole at y = -2
vertices: 
, 
B. directrix: 2 unit(s) above
the pole at y = 2
vertices: 
, 
C. directrix: 2 unit(s) to the right of
the pole at x = 2
vertices: 
, 
D. directrix: 2 unit(s) to the left of
the pole at x = -2
vertices: 
,
