The relationship governing the intraindustrial and interindustrial sales and purchases of four basic industries - agriculture (A), manufacturing (M), transportation (T), and energy (E) - of a certain economy is given by the following input-output matrix.
How many units of energy are required to produce 1 unit of manufacturing goods?
a. 0.5 units
b. 0.1 units
c. 0.2 units
d. 0.4 units
c. 0.2 units
Mathematics
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Evaluate the integral.
A. 
ln 
+ C
B. 
ln 
+ C
C. 
ln 
+ C
D. 
ln 
+ C
Mathematics
Evaluate the integral by making a substitution and then using a table of integrals.
A. 
+ ln 
+ C
B. 
- 
ln 
+ C
C. 
- 
ln 
+ C
D. 
+ 
sin-1 
+ C
Mathematics
Answer the question.Sue has taken two exams so far in her History course. Her scores are 90.8 and 68.4. What is the average of these scores?
A. 81.1 B. 84.6 C. 76.1 D. 79.6
Mathematics
Use the order of operations to simplify the expression.
2?
2
A. 
B. 
C. 
D. 
Mathematics