Simplify.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Provide an appropriate response.A galaxy is 5.1 light years from the earth. If 1 light year is 9.45 × 1012 km, how many kilometers from the earth is the galaxy? Write the answer in scientific notation.
What will be an ideal response?
Mathematics
Find all angles in degrees that satisfy the equation. Round approximate answers to the nearest tenth of a degree.cos 2? = 0.247
A. {
? = 37.8° + k180° or ? = 127.8° + k180°}
B. {
? = 14.3° + k180° or ? = 75.7° + k180°}
C. {
? = 37.8° + k180° or ? = 142.2° + k180°}
D. {
? = 14.3° + k180° or ? = 104.3° + k180°}
Mathematics
Find the exact function value if it exists.csc (-120°)
A. - 
B. -2
C. 
D. 
Mathematics
Perform the indicated operation, and leave your answer in exponential form.
5¹¹×5?
 figure 1.png)
Mathematics