Perform the indicated operation. Write the answer in standard form.(8 + 9i)(6 + 4i)
A. 12 + 86i
B. 36i2 + 86i + 48
C. 84 + 22i
D. 12 - 86i
Answer: A
Mathematics
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A. 0.94 B. 0.83 C. 9.4 D. 0.094
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Provide an appropriate response.The location of an Earth-orbiting satellite in a grid centered at the center of the Earth is given by 
Find 
.
What will be an ideal response?
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Use the definition or identities to find the exact value of the indicated trigonometric function of the acute angle ?.csc ? = 
Find cos ?.
A. 2
B. 
C. 
D. 
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Solve the problem.The four Galilean moons of Jupiter have orbital periods and mean distances from Jupiter given by the following table. 
Find the linear speed of each moon. Which is the fastest (in terms of linear speed)?
What will be an ideal response?
Mathematics