If five less than three times a number is 19, what is the number
1 answer:
You might be interested in
Let d be initial distance the man is from the lamp.
Let x(t) be length of shadow at time t.
The distance traveled is speed*time or 2.8t.
Now set up a proportion between 2 triangles.
One formed by end of shadow and top/bottom of lamp.
Small one formed by end of shadow and top/bottom of man.
Take derivative to find rate that x(t) is increasing.
Let x(t) be length of shadow at time t.
The distance traveled is speed*time or 2.8t.
Now set up a proportion between 2 triangles.
One formed by end of shadow and top/bottom of lamp.
Small one formed by end of shadow and top/bottom of man.
Take derivative to find rate that x(t) is increasing.