Jonah threw a tennis ball straight up in the air . the height of the ball as a function of the time is describe by the function h= -16t^2+50t+6. at which of the following times was the ball located at exactly a height of 32 feet?

What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

Need 50 will mark brainliest answer. find the lengths of all the sides and the measures of the angles.