In which of the following countries or regions is the emphasis on saving the environment the STRONGEST?

A. Latin America
B. Russia
C. Europe
D. United States


Answer: C

Mathematics

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Solve the problem.The average price (in dollars) to rent a studio in a certain city can be approximated by the equation  where t is the number of years since 1990. Solve this equation for t and use the new equation to determine approximately what year it will be when the average price of a studio in this city reaches $1138.40.

A. 2012 B. 2014 C. 2011 D. 2013

Mathematics

Multiply.

A. 9,672 B. 726,609 C. 74,958 D. 727,818

Mathematics

Write the augmented matrix for the system of linear equations.

A.
B.
C.
D.

Mathematics

Solve the problem.The loudness of a sound is measured in decibels (dB). The loudness L of a sound is related to its intensity I by the equation  where I0 = 10-12 watts per square meter (W/m2) is the intensity of the faintest sound the human ear can detect. Find the dB level of a radio at average volume from 12 feet away when it has an intensity of  W/m2.

A. ? 103 dB B. ? 113 dB C. ? 93 dB D. ? 83 dB

Mathematics