Building and solving an equation to model the situation, it is found that it takes 4 min for the prairie dog to reach 13 feet underground.
- Initially, the dog is 5 feet underground.
- Each minute, the dog goes 2 more feet underground.
Hence, the underground height of the dog after t seconds is given by:

The time it takes for the dog to reach 13 feet underground is <u>t for which h(t) = 13</u>, hence:





It takes 4 min for the prairie dog to reach 13 feet underground.
A similar problem is given at brainly.com/question/25290003
0.4kg per week. so 0.4kg x 6 weeks is 2.4kgs
K is constant. if you increase g(x) by x. f(x) also increases by x
200
You divide 60 by 3 because there are 60 m minutes in 1 hour. You get 20.
You then multiply 10 by 20 and you get 200.
Hope this helps! :)