Memory. In a certain memory experiment, the rate of memorizing is given by:
where M (t ) is the number of Spanish words memorized in t minutes. The subject has no Spanish words memorized at the beginning of the experiment. How many words are memorized in 14 minutes? (Round answer to the nearest whole number.)
13 words
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Solve the problem.Find the vector from the origin to the center of mass of a thin triangular plate (uniform density) whose vertices are A(10, 4, 2), B(7, 9, 5), and C(2, 8, 10).
A. 
i + 7j + 
k
B. 
i - 
j - 8k
C. 
i - 1j - 
k
D. 
i - 
j - 
k
Given the current cost of an item and the inflation rate, find the cost of the item in the specified number of years.Milk: $2.91, inflation rate: 3%, after 4 years
A. $6.28 B. $5.28 C. $3.28 D. $4.28
Compute the gradient of the function at the given point.
A. 4,782,969i + 1,062,882j + 4,782,969k B. 1,594,323i + 1,062,882j + 531,441k C. 1,594,323i + 1,594,323j + 354,294k D. 4,782,969i + 1,594,323j + 3,188,646k
Add or subtract, if possible. Assume that all variables represent non-negative values. Simplify your answer. 
+ 
A. 
B. 
C. 
D. 