Find the production matrix for the input-output and demand matrices.A = 
, D = 
A. 
B. 
C. 
D. 
Answer: B
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The oxygen consumption (in milliliter/pound/minute) for a person walking at x mph is approximated by the function
?
?
where the oxygen consumption for a runner at x mph is approximated by the function
?
?
At what speed is the oxygen consumption the same for a walker as it is for a runner? What is the level of oxygen consumption at that speed?
?
A. 3.1 mph, 100.6 mL/lb/min
B. 7.6 mph, 95.6 mL/lb/min
C. 4.6 mph, 65.6 mL/lb/min
D. 5.6 mph, 75.6 mL/lb/min
E. 7.1 mph, 90.6 mL/lb/min
Write the fraction.At Smith's Apple Orchard one day, 53 people were picking apples, 13 people were picking pumpkins, and 34 people were picking raspberries. What fractional part of the people were picking either apples or pumpkins?
A. 
B. 
C. 
D. 
Solve.16x2 + 48x + 27 = 0
A. - 
, - 
B. - 
, 
C. 
, 
D. - 
, - 
Express as a single logarithm and, if possible, simplify.ln 45 - ln 9
A. ln(5)
B. ln 
C. ln 
D. ln(36)