Answer:
54 seconds
Step-by-step explanation:
Wanda's walking rate = 3 ft/s
Wanda's head start = 27 s
Dave's walking rate= 4.5 ft/s
Let 't' be time after Dave started walking
The distance walked by Wanda and Dave, respectively, as a function of 't' are given by:

The instant 't' at which Dave catches up to Wanda (both distances walked are equal) is:

You need to find D first, after you find D plug it into the equation:
y= d (250)+300
im not sure this is right but try it out, hope it helps
A circular plot is watered by a sprinkler that rotates through it. The sprinkler only rotates through a semi-circle, or half of the whole circle.
Area of a circle: A = pi x r^2
r = 160 / 2 = 80
A = pi x 80^2
A = 6400pi / 2 = 3200pi
3200pi = 10053.0965
The area water is approximately 10,053 ft^2.
Hope this helps!! :)
"In standard form" LOL JK BE MORE SPECIFIC DUDE
Answer:
Radius is 7.
Step-by-step explanation: