Use the alphabet coding method (A =1, B = 2, C = 3, ... Z = 26) to solve the problem.The function defined by f(x) = x + 2 was used to encode a message as: 15 3 22 10 9 7 16 11 23 21Find the inverse function and determine the message.
What will be an ideal response?
f-1(x) = x - 2; MATH GENIUS
Mathematics
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Solve.In 1980, the population of a city was 5.2 million. By 1992 the population had grown to 7.6 million. Find the rate at which the population of the city was growing.
A. 
million per year
B. 
million per year
C. 
million per year
D. 
million per year
Mathematics
Solve the system of two equations in two variables. x - 4y = 20-3x - 3y = 15
A. (1, -6) B. (5, 0) C. (0, -5) D. No solution
Mathematics
Find an equation in slope-intercept form (where possible) for the line.Through (0, 1), m = 
A. y = - 
x + 1
B. y = 
x - 1
C. y = 
x + 1
D. y = - 
x - 1
Mathematics
Simplify: log ?? 20
What will be an ideal response?
Mathematics