Perform the indicated operations.-1(2) - (-18) ? 9
A. 10
B. -160
C. -164
D. 160
Answer: D
Mathematics
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Find the probability.One digit from the number 7,939,449 is written on each of seven cards. What is the probability of drawing a card that shows 7 or 4?
A. 
B. 
C. 1
D. 
Mathematics
Graph the function.y = 
sin 
x
A. 
B. 
C. 
D. 
Mathematics
Determine whether the statement is true or false.-24 > -21
A. False B. True
Mathematics
Solve the problem.A sample of 300 g of lead-210 decays to polonium-210 according to the function given by 
where t is time in years. What is the amount of the sample after 60 years (to the nearest g)?
A. 230 g B. 32 g C. 2046 g D. 44 g
Mathematics