Add or subtract as indicated. Simplify the result if possible. If an answer is an improper fraction, write it as a mixed number.
+ 
A. 
B. 
C. 
D. 1
Answer: B
Mathematics
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Find the product or quotient, using trigonometric form. Write the answer in the form a + bi.
A. 
- 
i
B. 
+ 
i
C. 
+ 
i
D. 
+ 
i
Mathematics
Solve the problem.An electrician charges a fee of $45 plus $30 per hour. Let y be the cost in dollars of using the electrician for x hours. Find the slope-intercept form of the equation.
A. y = 45x + 30 B. y = 30x - 45 C. y = 45x - 30 D. y = 30x + 45
Mathematics
Provide an appropriate response.True or false? i = -1
A. True B. False
Mathematics
Find the inverse of the matrix, if possible.A = 
A. 
B. 
C. 
D. 
Mathematics