A) For the geometric series 2 + 6 + 18 + 54 + ... , find S8 B) Find the sum of the series -11 - 3 + 5 + 13 + ... + 125 using the series formula.

If qrs tuv, which congruences are true by cpctc? check all that apply. a. q u b. rs tu c. qs tv d. qr tu e. s v f. r u

How do i do this using elimination 2x+3y=12 x-y=6

Answer asap ill give ! ’ a sample of radioactive material decays over time. the number of grams, y , of the material remaining x days after the sample is discovered is given by the equation y = 10(0.5)^x. what does the number 10 represents in the equation? a. the half-life of the radioactive material, in days b. the amount of the sample, in grams, that decays each day c. the time, in days, it will take for the samples to decay completely d. the size of the sample, in grams, at the time the material was discovered