Solve the problem by integration.Under specified conditions, the time t (in min) required to form x grams of a substance during a chemical reaction is given by 
Find the equation relating t and x if x = 0 g when t = 0 min.
A. t = 
ln 
- 
ln 
B. t = 
ln 
+ 
ln 
C. t = 
ln 
- 
ln 
D. t = 
ln 
+ 
ln 
Answer: C
Mathematics
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Evaluate the integral.
A. 
+ C
B. 
+ C
C. 1
D. 
+ C
Mathematics
Solve the proportion for X.
= 
A. X = 24 B. X = 6 C. X = 3 D. X = 2
Mathematics
Solve the problem.If an object is dropped from a tower, then the velocity, V (in feet per second), of the object after t seconds can be obtained by multiplying t by 32 and adding 10 to the result. Find V as a linear function of t, and use this function to evaluate V(3.6), the velocity of the object at time 
A. V(3.6) = 123.2 ft/sec B. V(3.6) = 125.2 ft/sec C. V(3.6) = 124.5 ft/sec D. V(3.6) = 126.5 ft/sec
Mathematics
A point P(x, y) in rectangular coordinates is given. Determine the polar coordinates 
such that 
and 
(3, -3)
A. 
B. 
C. 
D. 
Mathematics