Perimeter:

Area:

Step-by-step explanation:
Perimeter of a rectangle : P= 2( L + w)
in this case it would be 2(y+6) + 2(2y)
= 2y+12 + 4y
simplified to 6y +12
Area of a rectangle : A= LW
=(y+6)(2y)
We foil and get

A postulate is a statement in math that is so obvious that it does not need to be proven, that is basically what it means, in layman's terms
y=-16t²+400
add -16t² to both sides
-16t²=-400
divide both sides by 16
t²=-25
t=√25
t=5
So in 5 seconds the camera will hit the water.
Answer:
3 hours and twenty five minutes, i think
Step-by-step explanation:
Answer:
I'm sorry I couldn't help you
Step-by-step explanation: