Answer:
x = 13 , y = 29
Step-by-step explanation:
If you have any questions about the way I solved it, don't hesitate to ask!
The approximation of the circumference of the ride is 138 feet to the nearest foot
<h3>How to determine the circumference?</h3>
The given parameters are:
- Center (a,b) = (0,0) i.e. the origin
- A circular ring, (x,y) = (16,15.1)
The radius is calculated using:

So, we have:

Evaluate
r = √484.01
Evaluate the square root
r = 22.0
The circumference is calculated using
C = 2πr
So, we have:
C = 2π * 22.0
Evaluate
C = 138
Hence, the approximation of the circumference of the ride to the nearest foot is 138 feet
Read more about circumference at:
brainly.com/question/14283575
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Answer:
Average rate of change 
Step-by-step explanation:
Given interval are from 
Also,
Average rate of change![=\frac{f(b)-f(a)}{b-a}\ for\ given\ interval\ [a,b]](https://tex.z-dn.net/?f=%3D%5Cfrac%7Bf%28b%29-f%28a%29%7D%7Bb-a%7D%5C%20for%5C%20given%5C%20interval%5C%20%5Ba%2Cb%5D)
Here given intervals are 
Plugging these value in formula, we get.
Average rate of change
Hmmm.. I solved it and got 82%. I may be wrong, but try it out.
Answer:
255.50
Step-by-step explanation:
If each day the number is doubled, then all you must do is keep on doubling to the ninth day and then add it all together