Ask a New Question

Asked by Guy

"How fast is the area of the triangle formed by the ladder, the house, and the ground when the base of the ladder is 7 ft. away from the wall?

Given
h=24ft.
dh/dt=-7/12ft. per sec.
b=7 (base)
db/dt=2ft. per sec.

d/dt[A=1/2bh]

How would you derive this with respect to time?
14 years ago

Answers

Answered by bobpursley
A= 1/2 bh
dA/dt= 1/2 hdh/dt + 1/2 bdb/dt

compute, you have h, dh/dt, b, db/dt
14 years ago
Answered by Guy
thanks
14 years ago

Related Questions

How fast is the area of a square increasing when thh side is 3m in length and growing at a rate of 0... help fast Find the area of a parallelogram with base b and height h. b = 87 cm h = 18.6 cm... How fast is the surface area of a cube changing when the edge is 30 cm. If the edge is changing at t... do fast vpn give you fast intrent How fast would something be if it created 10 sonic booms? How fast is lightning fast that is 1/1000 the speed of sound if you run as fast as you can, your muscles may be to feel weak and have a burning sensation. Explai... which is an example of a fast-track status? headache stroke seizure hermorrhage Why would i need to be fast when i'm being chased by an enormous killer zebra?
Ask a New Question
Archives Contact Us Privacy Policy Terms of Use