Answer:
I think the top and the two in the middle but I can't really see it's a blurry picture
Answer: negative divided by negative is positive
Step-by-step explanation:
This is ur answer plz mark brainliest
https://mathbitsnotebook.com/Geometry/CongruentTriangles/CTtriangleMethods.html <-- this can help you
Answer:
-0.69 feet per second
Step-by-step explanation:
We have dx/dt = 2 ft/sec, and we want to determine dy/dt.
x and y are related by the Pythagorean Theorem.
x²+y²=16²
Differentiate both sides of this equation with respect to t to get


Divide both sides by 2y

When x = 5 ft, we have
x²+y²=16²
5²+y²=256
y²=256-25=231
therefore
y= 

=-0.69
The top of the ladder is sliding down (because of the negative sign in the result) at a rate of -0.69 feet per second.