Models the height (in feet) of a ball where t is the time (in seconds). How many seconds is the ball in the air before it hits the ground? Just write the numerical answer - do not include t= or any units in your answer. If your answer is not an integer, enter it either as a decimal or an improper fraction - do NOT use mixed numbers.

Prove that 3: 8 is equivalent to 12: 32.a. use diagrams to support your answer.

What are the relative frequencies to the nearest hundredth of the columns of the two-way table? a b group 1 102 34 group 2 18 14

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.