3^a = 1/27 , 3^b= 9√3 , 3^c= 1/√3

Write down the values of a, b and c.

Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.) t =

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

Which of these angles are complementary? a. 45o and 45o b. 63o and 117o c. 45o and 135o d. 90o and 45o