Answer:
72.22 inches
Step-by-step explanation:
Okay so the formula for circumference is C=2πr so since the diameter is twice the radius, the radius is 11.5. Now you have to multiply 11.5 and 2. That equals 23. Now you have to multiply 23 by π which is about 3.14. 23 times 3.14 is 72.22 inches.
Hope this helped!! :D
Answer:
34
Step-by-step explanation:
12(3)-2
36-2
34
That means that it has 2 complex roots, and it has no x intercepts, means that it doesn't touch the x axis at all
Answer:
The second one
Step-by-step explanation:
The equation will be of the form:

where A is the amount after t hours, and r is the decay constant.
To find the value of r, we plug the given values into the equation, giving:

Rearranging and taking natural logs of both sides, we get:


The required model is: