The rate of vocabulary memorization of the average student in a certain foreign language course is given by 
, where t is the number of continuous hours of study, 
, and v is the number of words. About how many words would the average student memorize in 2 hours? Round
your answer to the nearest whole number of words.
?
A. 36 words
B. 38 words
C. 40 words
D. 41 words
E. 43 words
Answer: B
Mathematics
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A particle moves with position function r(t) = (21t-7t³-5)i+21t²j.
 multiple choice.png)
Mathematics
Show that f and g are inverses of each other by verifying that f(g(x)) = x = g(f(x)).
; g(x) = x3 - 1
What will be an ideal response?
Mathematics
Solve the equation by completing the square.x2 + 10x + 14 = 0
A. {-5 - 
, -5 + 
}
B. {5 + 
}
C. {-10 + 
}
D. {5 - 
, 5 + 
}
Mathematics
Solve the equation and state the solution set.
= 
A. {4, 6}
B. 
C. {0, 36}
D. {0}
Mathematics