Prove the following statement directly from the definitions of the terms. Do not use any other facts previously proved in class or in the text or in the exercises
For all rational numbers r, and s, if s ?= 0, then 2r/5s is a rational number.
Mathematics
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Evaluate the function.Given f(x) = (x + 3)2, find f(2).
A. 25 B. 1 C. 10 D. -25
Mathematics
Use a graphing calculator to evaluate the series.
A. -11 B. 189 C. 273 D. 73
Mathematics
Graph. Label any intercepts and determine the slope of the line. If the slope is undefined, state this.x = -7
A. x-intercept: (-7, 0), m: - 
B. x-intercept: (0, -7), m: 0
C. x-intercept: (0, 0), m: -7
D. x-intercept: (-7, 0), m: undefined
Mathematics
Write out the sum.
A. 
+ 
+ 
+ ... + 
n
B. 0 + 1 + 2 + 3 + ... + n
C. 1 + 
+ 
+ ... + 
n
D. 0 + 
+ 
+ ... + 
n
Mathematics