Change the mixed number to an improper fraction.4
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Evaluate the expression.
A. 12
B. 2!
C. 
D. 
Mathematics
Find the curvature of the curve r(t).r(t) = (7 + ln(sec t))i + (4 + t)k, -?/2 < t < ?/2
A. ? = -cos t B. ? = sin t C. ? = cos t D. ? = 1 - cos t
Mathematics
Solve the problem.The amount of particulate matter left in solution during a filtering process is given by the equation 
where n is the number of filtering steps. Find the amounts left for 
and 
. (Round to the nearest whole number.)
A. 600, 19 B. 600, 9600 C. 600, 38 D. 1200, 38
Mathematics
Subtract. Check by adding.
A. 6425 B. 4361 C. 4421 D. 4425
Mathematics