Derive a set of inequalities to describe the region.
a. 
b. 
c. 
d. 
d.
Mathematics
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Write the ratio as a fraction in lowest terms.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.The population of a particular country was 23 million in 1981; in 1990, it was 27 million. The exponential growth function 
describes the population of this country t years after 1981. Use the fact that 9 years after 1981 the population increased by 4 million to find k to three decimal places.
A. 0.018 B. 0.154 C. 0.028 D. 0.715
Mathematics
Convert the measurement to the specified units.1440 seconds to hours
A. 4 hours B. 24 hours C. 0.4 hours D. 2.4 hours
Mathematics
Multiply.(x - 4)(x + 1)(-3x - 2)
A. -3x3 - 7x2 - 18x + 8 B. -3x3 + 8 C. -3x3 + 7x2 + 18x + 8 D. -3x3 + 18x2 + 7x + 8
Mathematics