On a given morning the temperature was 71°f. the temperature dropped 5°f and then rose 8°f. how much does the temperature need to rise or fall to return to the initial temperature of 71°f?

a) fall 8°f
b) fall 3°f
c) rise 8°f
d) rise 5°f

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 =

Aline that intersects one of two parallel lines intersects the other also always sometimes never

The length of a shadow of the building is 36m. the length of the pole, which is perpendicular to the ground, is 1.9m. the length of the pole's shadow is 1.52m. what is the height of the building?