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Identify the boundaries of the solution of this inequality 2r 2?
2r
Simplify 2r plus 7r - 6t - r plus 7t?
2r + 7r - 6t - r + 7t = 8r + t
2r plus 2s equals 50 and 2r minus s equals 17?
2r + 2s = 50 2r - s = 17 therefore 4r - 2s = 34 Add so that you can eliminate one of the variables: 2r + 2s = 50 4r - 2s = 34 ---------------- 6r + 0s = 84 Solve for r: 6r = 84 r = 14 Substitute r into one of the original equations: 2(14) + 2s = 50 28 + 2s = 50 2s = 22 s = 11 Doublecheck with the other original equation: 2(14) - 11 = 28 - 11 = 17
What does pi to power of 2r mean?
pi2r can be calculated, but is has no particular mathematical interpretation.
Can r plus 2r - 3r be simplified?
5
