Jason, wendy, kevin, and michelle each entered a frog in an annual frog-jumping contest. each of their frogs – hippy, hoppy, bounce, and pounce ­– placed first, second, or third in the contest and earned a blue, red, or white ribbon, respectively. use the following clues to determine who entered which frog and the order in which the frogs placed.
a. michelle's frog finished ahead of both bounce and hoppy.
b. hippy and hoppy tied for second place.
c. kevin and wendy recaptured hoppy when he escaped from his owner.
d. kevin admired the blue ribbon pounce received but was quite happy with the red ribbon his frog received

Lucy is a dress maker. she sews \dfrac47 7 4 of a dress in \dfrac34 4 3 hour. lucy sews at a constant rate. at this rate, how many dresses does lucy sew in one hour? include fractions of dresses if applicable

Which best explains why this triangle is or is not a right triangle ?

Each of the following data sets has a mean of x = 10. (i) 8 9 10 11 12 (ii) 7 9 10 11 13 (iii) 7 8 10 12 13 (a) without doing any computations, order the data sets according to increasing value of standard deviations. (i), (iii), (ii) (ii), (i), (iii) (iii), (i), (ii) (iii), (ii), (i) (i), (ii), (iii) (ii), (iii), (i) (b) why do you expect the difference in standard deviations between data sets (i) and (ii) to be greater than the difference in standard deviations between data sets (ii) and (iii)? hint: consider how much the data in the respective sets differ from the mean. the data change between data sets (i) and (ii) increased the squared difference îł(x - x)2 by more than data sets (ii) and (iii). the data change between data sets (ii) and (iii) increased the squared difference îł(x - x)2 by more than data sets (i) and (ii). the data change between data sets (i) and (ii) decreased the squared difference îł(x - x)2 by more than data sets (ii) and (iii). none of the above