Solve the problem.Given the revenue and cost functions R(x) = 26x - 0.4x2 and 
, where x is the daily production, find the rate of change of revenue with respect to time when 
and 
A. $161.6/day
B. $112/day
C. $156/day
D. $72/day
Answer: B
Mathematics
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Evaluate the requested trigonometric function using the information given. cos ? = 
; 3?/2 < ? < 2?Find tan ?.
A. -
B. -
C. 6
D. - 
Mathematics
Solve the problem.An airplane flying faster than the speed of sound creates sound waves that form a cone. If ? is the vertex angle of the cone and m is the Mach number for the speed of the plane, then 
Find the Mach number to the nearest tenth if 
A. 5 B. 3.9 C. 3.7 D. 4.5
Mathematics
Convert as indicated.64 kg to grams
A. 0.64 grams B. 64,000 grams C. 0.064 grams D. 6400 grams
Mathematics
Use the prime factorization method to find the LCM of the given numbers.30 and 55
A. 55 B. 85 C. 1650 D. 330
Mathematics