Identify the multiplication model that best fits the problem. Do not solve the problem.Suppose there are 2 roads connecting town A to town B and 3 roads connecting town B to town C. In how many ways can a person travel from A to C via B?
A. Measurement model
B. Cartesian product model
C. Set model
D. Array model
Answer: B
Mathematics
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Write the complex number in rectangular form.8
A. 
+ 
i
B. 
+ 
i
C. 4 + 4
i
D. 4
+ 4i
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Simplify.
A. -1
B. 0
C. 1
D. 
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Perform the indicated operation. Write your result in scientific notation.
A. 4 × 10-2 B. 4 × 10-3 C. 4 × 105 D. 4 × 106
Mathematics
Find the exact function value if it exists.cot (-150°)
A. - 
B. 
C. -2
D. 
Mathematics