ayden broke a cell sample into 9 batches, each weighing 9.4 x 10^-9 grams. how much did the original sample weigh? use scientific notation to express your answer.

Which transformations could have occurred to map △abc to △a"b"c"? a rotation and a reflection a translation and a dilation a reflection and a dilation a dilation and a rotation

33% of college students say they use credit cards because of the rewards program. you randomly select 10 college students and ask each to name the reason he or she uses credit cards. find the probability that the number of college students who say they use credit cards because of the rewards program is (a) exactly two, (b) more than two, and (c) between two and five inclusive. if convenient, use technology to find the probabilities.

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.