math
If the sum of the first and the second terms of an infinite Geometric progression is equal to 3/8, and the sum of its term is equal to 1/2. find the common ratio of the first term of the progression
math
in a Geometric progression the sum of the first and the second terms is 90 and the sum of the second and the fourth terms is equal to 30.find the sum of the first 8th term in the progression
math
find the sum of the first 8th term of the Geometric progression, 1,3,9,27
math
find the sum of the 20th term a=6 and r=2/3
Math
27
Math
My ones digit is 5 more than the tens digit. i am greater than 25 and less than 35.
Calculus - integration
integration1-e integration 0-lnx y dy dx
graphing
How do you graph y= -log (base 5)(-x)? The written question is: Sketch above equation by first describing the transformations performed on the equation y= log (base 5)(x) And what is the inverse function? x=log (base 5)(y)?
Chemistry
and the Ksp as well im so lost! :(
Chemistry
what is the solubility of Pb(NO3)2, PbCl2, PbCrO4, and PbS from highest to lowest
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