Solve the problem.A tank containing 6 L of water drains out in 40 min. The volume V of water in the tank after t min of draining is V = 6(1 - t/40)2 . Find the instantaneous time rate of change of V after 11 minutes of draining.
A. -0.2175 L/min
B. -0.10875 L/min
C. 3.15375 L/min
D. 8.7 L/min
Answer: A
Mathematics
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Determine if the argument is valid or a fallacy. Give a reason to justify answer.If the bough breaks, then the cradle will fall.The bough breaks. The cradle will fall.
A. Valid by reasoning of transitivity B. Valid by modus ponens C. Fallacy by fallacy of the converse D. Fallacy by fallacy of the inverse
Mathematics
Subtract.8556
A. 8207 B. 213 C. 8213 D. 8127
Mathematics
Given the radius, r, of a circle, find the diameter; or given the diameter, d, of a circle, find the radius.d = 84 ft
A. r = 131.88 ft B. r = 5538.96 ft C. r = 21 ft D. r = 42 ft
Mathematics
Compute the product, expressing the answer in lowest terms.
× 
A. 
B. 
C. 
D. 
Mathematics