Graph the solution region for the system of inequalities and identify the corners of the region.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Use the substitution method to solve the system.4x - 6y = -102x + 2y = 30
A. (7, 8) B. (8, 8) C. (8, 7) D. No solution
Mathematics
Solve the problem.The logarithmic function f(x) = -200 + 88 ln x models the number of visitors (in millions) to U.S. museums from 1960 to 2010, where x is the number of years since 1960. Is this function increasing or decreasing?
A. increasing B. decreasing
Mathematics
Suppose that ln 2 = a and ln 5 = b. Use properties of logarithms to write each logarithm in terms of a and b.ln 20
A. 2a + 2b B. 2a + b C. a + b D. 4b
Mathematics
Find the difference.-9 - 20
A. -29 B. 11 C. 29 D. -11
Mathematics