Will give brainiest. a ball is thrown from an initial height of 3 meters with an initial upward velocity of 20/ms . the ball's height h (in meters) after t seconds is given by the following. h=3+20t-5t^2 find all values of t for which the ball's height is 8 meters. round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.)

We can complete the square to rewrite as

Then solve for when :

given that triangle abc is transformed two times to get triangle

a"b"c"

first abc is transformed in to a'b'c' as follows:

the coordinates of a are (1,-1) and transformed into a'(-1,1)

similarly b (4,-2) became b'(-4,2) and

c(7,-2) became c'(-7,2)

i.e. (x,y) becomes (-x,-y)

this is nothing but reflection about a point here origin.

thus first transformation is reflection on the origin.

next is exactly shifting 3 units down

source:

step-by-step explanation:

b and c