The economy of a small island nation is based on two sectors, coal and steel. Production of a dollar's worth of coal requires an input of $0.39 from coal and $0.43 from steel. Production of a
dollar's worth of steel requires an input of $0.55 from coal and $0.35 from steel. Find the output
from each sector that is needed to satisfy a final demand of $44 million for coal and $81 million
for steel
The output from the coal sector is approximately $2 million.
(Round to the nearest million.)
million
The output from the steel sector is approximately $
(Round to the nearest million.)

Which of the following are accepted without proof in a logical system? check all that apply.

Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?

Each of the following data sets has a mean of x = 10. (i) 8 9 10 11 12 (ii) 7 9 10 11 13 (iii) 7 8 10 12 13 (a) without doing any computations, order the data sets according to increasing value of standard deviations. (i), (iii), (ii) (ii), (i), (iii) (iii), (i), (ii) (iii), (ii), (i) (i), (ii), (iii) (ii), (iii), (i) (b) why do you expect the difference in standard deviations between data sets (i) and (ii) to be greater than the difference in standard deviations between data sets (ii) and (iii)? hint: consider how much the data in the respective sets differ from the mean. the data change between data sets (i) and (ii) increased the squared difference îł(x - x)2 by more than data sets (ii) and (iii). the data change between data sets (ii) and (iii) increased the squared difference îł(x - x)2 by more than data sets (i) and (ii). the data change between data sets (i) and (ii) decreased the squared difference îł(x - x)2 by more than data sets (ii) and (iii). none of the above