Answer:
5
or 18.03
Step-by-step explanation:
Let's call the unknown leg x
Using the Pythagoras rule
19^2 = 6^2 + x^2
361 = 36 + x^2
subtract 36 from both sides
361 - 36 = x^2
325 = x^2
Take the square root of both sides
= 
= x
x = 5 = 18.03
9)
t = V+K/g, n=multiply both side by g to get :
TG = V+K
now divide both sides by T to get G alone
so G = V/t + K/t = g = (V+K)/t
10)l = -a +2S/2
Answer:
4.45 m/s
Step-by-step explanation:
Vertical distance, Sy = 5m
The speed of pebble when they hit her window :
Vx = Sx / t
We can obtain t using the relation :
Sy = 1/2 * at²
Where, a = acceleration due to gravity = 9.8m/s²
We can obtain t
5 = 1/2 * 9.8 * t²
5 = 4.9t²
t = √5/4.9
t = 1.01 seconds
Hence,
Speed, Vx = Sx / t
Vx = 4.5 / 1.01
Vx = 4.45 m/s
HA hypotenuse angle is the correct answer. you can verify the hypotenuse and corresponding angle are equivalent therefore the triangles are equal
