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

Mathematics

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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

Mathematics

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

Mathematics

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

Mathematics

Add or subtract, if possible. Assume that all variables represent non-negative values. Simplify your answer.  + 

A.
B.
C.
D.

Mathematics