In the previous problem, how much salt will there be in the tank after a long period of time?
Select the correct answer.
?
A. 1000 kilograms
B. 300 kilograms
C. 120 kilograms
D. 80 kilograms
E. none of the above
Answer: D
Mathematics
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Evaluate the expression.cos(-90°)
A. 
B. -1
C. 0
D. Undefined
Mathematics
Provide an appropriate response.Find a polynomial that represents the perimeter.
A. 32k2 + 16x + 8 B. 16k2 + 12x C. 32k2 + 24x D. 16k2 + 8x + 4
Mathematics
A card is drawn from a standard deck of cards. Expressing your answer as a fraction in simplest form, what is the probability of getting the specified card?a red card.
A. 
B. 
C. 
D. 
Mathematics
Perform the operation. Write the answer as a fraction in lowest terms.1
? 2
A. 
B. 
C. 
D. 
Mathematics