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OpenStudy (anonymous):
does anyone know how to solve this long handed? log(base7)727 I don't have a graphing calculator and i need to be able to do it long handed for the test this week.
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OpenStudy (amistre64):
7^x = 727 ; start out by seeing how close you can get with it: 7 = 7 7*7 = 49 7*7*7 = 343 7*7*7*7 = 2401; so its between 3 and 4
OpenStudy (amistre64):
change of base would help if you new a common base that 7 and 727 go into;
OpenStudy (anonymous):
okay
OpenStudy (anonymous):
Thank you very much!
OpenStudy (amistre64):
yw, hope you do well :)
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