Answer:

Step-by-step explanation:
Let's assume
initial velocity =vi
final velocity=vf
initial height =hi
final height =hf
acceleration due to gravity =g
we can use formula

we are given




now, we can plug values

now, we can solve for vf

we get

You divide everything by 2.
Your answer is
Y=1/2 + 3/2
12 divides by 3 is equal to 4
(9 * 100) + (2 * 10) + (3 * 0.1) + (7 * 0.001) =
920.307
Answer:
22.4
Step-by-step explanation:
using altitude theorem, the height of the triangle is 20
let y = height
10/y = y/40
y² = 400
y =
or 20
Now we can us the Pythagorean Theorem to find 'x':
10² + 20² = x²
100 + 400 = x²
x=
≈ 22.4