Jada explains how she finds 15⋅23: "I know that ten 23s is 230, so five 23s will be half of 230, which is 115. 15 is 10 plus 5, so 15⋅23 is 230 plus 115, which is 345." 1. Do you agree with Jada? Draw a 15 by 23 rectangle in your book. Partition the rectangle into two rectangles and label them to show Jada’s reasoning. Does this rectangle match the correct way to show 15⋅23?

For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.

Assume that 1400 births are randomly selected and 1378 of the births are girls. use subjective judgment to describe the number of girls as significantly high, significantly low, or neither significantly low nor significantly high. choose the correct answer below. a. the number of girls is neither significantly low nor significantly high. b. the number of girls is significantly high. c. the number of girls is significantly low. d. it is impossible to make a judgment with the given information.

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?