Tell whether the events A and B are independent (with replacement) or dependent (without replacement). Then find P(A and B). You write each of the letters of the word BIOLOGY on pieces of scrap paper, and place them all in a bag. You randomly draw one letter, do not replace it, then randomly draw a second letter.

Event A: The first letter is O.

Event B: The second letter is B.

Nick has box brads. he uses 4 brads for the first project. nick let’s b represent the original number of brads and finds that for the second project, the number of brads he uses is 8 more than half the difference of b and 4. write an expression to represent the number of brads he uses for the second project.

The pyramid below was dissected by a horizontal plane which shape describes the pyramid horizontal cross section

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