Write two expressions that are equivalent to? - 5/4? x -3/4
please help i will give 100 coins .

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11

What is the number 321,000,000 in scientific notation? also what is the number? ?

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