Indicate whether the statement is true always, sometimes, or never.A real number is a complex number.
A. Always
B. Sometimes
C. Never
Answer: A
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Express the number in decimal notation.8.1 × 105
A. 81,000 B. 8,100,000 C. 405 D. 810,000
The following question refers to a country with five states. There are 250 seats in the legislature, and the populations of the states are given in the table below.
Under Webster's method, the apportionments to each state are
A. State A: 6; State B: 22; State C: 118; State D: 96; State E: 8. B. State A: 7; State B: 22; State C: 117; State D: 95; State E: 9. C. State A: 6; State B: 22; State C: 117; State D: 96; State E: 9. D. State A: 6; State B: 23; State C: 116; State D: 96; State E: 9. E. none of these
In the energy demand problem above, the demand vectors could be represented in a 2 row matrix, where row 1 contains the energy demands of the consumers and row 2 contains the energy demands of the energy industries:D = 
A boom in the economy causes an across the board increase of 10% in energy demands in the area. Calculate a new demand matrix which reflects this increase.
What will be an ideal response?
Is ?BCD an exterior angle of ?ABC?
