Multiply and simplify.-6z ? 
A. 0
B. 36z
C. 1
D. -1
Answer: C
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If there are G grams of a certain radioactive substance present today, then in one year there will be 
grams remaining. There are initially 28 grams present. How much remains after 6 years? Round your answer to two decimal places.
?
A. 25.94 grams B. 23.32 grams C. 22.18 grams D. None of the above
Solve the problem.An object in simple harmonic motion has a frequency of 
oscillations per second and an amplitude of 3 feet. Write an equation in the form d = a sin ?t for the object's simple harmonic motion.
A. d = 3 sin 5?t
B. d = 3 sin 
C. d = 3 sin 
D. d = 3 sin 
Perform the indicated operations.24 + 122
A. 152 B. 40 C. 32 D. 160
Solve the inequality. Graph the solution set and write the solution set in interval notation.3x2 - 5x ? 8
A. 
B. (-?, -1] ? 
C. (-?, -1) ? 
D. 
