Multiply. Write your answer in the form a + bi.(6 + 2i)(9 - 5i)
A. -10i2 - 12i + 54
B. 44 + 48i
C. 64 - 12i
D. 64 + 12i
Answer: C
Mathematics
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For the given system of equations, which method would be the most efficient method to use when solving the system of equations: substitution, addition, or either?x + y = 124x + 9y = 41
A. addition B. substitution C. either
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Find the volume.Find the volume of a cube measuring 4 cm on each edge.
A. 32 cm3 B. 12 cm3 C. 64 cm3 D. 16 cm3
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Write the binary representation for the letter or word.Q
A. 1010001 B. 1010100 C. 1010010 D. 100100
Mathematics
Determine if the sequence is geometric. If the sequence is geometric, find the common ratio.4, -12, 36, -108, 324, . . .
A. yes, 12
B. yes, - 
C. no
D. yes, -3
Mathematics