Answer:Count all of the windows that look like rectangles and put your answer below and explain the method you used multiplication, addition.
Answer:
The speed is 20.8 m/s
Step-by-step explanation:
If a projectile ascends vertically, and after 3 seconds it reaches its maximum height, calculate the velocity that it carries to the middle of its downward trajectory
Let the maximum height is h and initial velocity is u.
From first equation of motion
v = u + at
0 = u - g x 3
u = 3 g.....(1)
Use third equation of motion

Let the speed at half the height is v'.

Answer:
The slope decreases and the y-intercept decreases.
Explanation:
Red is original, blue is when y is doubled.
Ok so..... u go on the y axis and u go to 3 over 4 put a dot there and go to -8 put a dot there and then u connect them sorry