Simplify the polynomial by adding or subtracting, as indicated. Express your answer as a single polynomial in standard form.(2x6 - 20x5 + 16) - (7x6 - 16x5 - 7)
A. -5x6 - 13x5 + 9
B. 14x11
C. -5x6 - 4x5 + 9
D. -5x6 - 4x5 + 23
Answer: D
Mathematics
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Perform the indicated operation.
- 
A. 
B. 
C. 
D. 
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Graph the numbers on the number line.-5, -3, -1, 1 
A. 
B. 
C. 
D. 
Mathematics
Find the perimeter of (distance around) the given figure by adding the lengths of the sides.
A. 15.4 m B. 10 m C. 20 m D. 14.6 m
Mathematics
Solve the problem.Suppose the amount of a radioactive element remaining in a sample of 100 milligrams after x years can be described by 
. How much is remaining after 186 years? Round the answer to the nearest hundredth of a milligram.
A. 0.03 mg B. 3676.99 mg C. 360.47 mg D. 2.72 mg
Mathematics