Answer:
I wanna say 13 1/2 is the answer
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:
Answer: 56.549 or 56.5
Explanation:
C= (pie) 3.14 * d = 2 * 3.14 * r
D= 18
C = 3.14 * 18 = 18 * 3.14
C = 56.549 or 56.5
Answer:
Real life example of parallel lines are railroad tracks and rows in a garden. Also the lines on a basketball court are parallel so basically C if im positive
Step-by-step explanation:
Some examples include the structural frames of buildings, railroad tracks, windows (opposite sides), sailboats, steps, and paper.
parallel bars in men's gymnastics
Also anything that is shaped as a rhombus, square or a rectangle. ( added by a.m.b.)