Perform the indicated operation. Write the result in the form a + bi.(5 + 6i) - (-6 + i)
A. -1 + 7i
B. 11 + 5i
C. -11 - 5i
D. 11 - 5i
Answer: B
Mathematics
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Find the limit.
A. 
B. 7
C. 1
D. ?
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Find the exact value under the given conditions.sin ? = 
, 0 < ? < 
; cos ? = 
, 0 < ? < 
Find cos (? + ?).
A. 
B. 
C. 
D. 
Mathematics
Find the probability.Two dice are rolled. Find the probability that the score on the dice is either 8 or at most 3.
A. 
B. 
C. 
D. 
Mathematics
Solve the system of equations.4x+ y- 3z =-19-x+ 4y+ 2z=3-6x + 7y+ 7z=25
A. No solution; inconsistent system of equations B. (-5, -1, 1) C. Infinite number of solutions; dependent equations D. (-2, -5, 2)
Mathematics