The answer is 549 divided by 9 = 61 vehicles per acre
We can use the 9 inches wide to determine that 18 inches of the 42 inches are the wide sides. 42 - 18 = 24, so we divide 24 by how many long sides there are, 2. 24 ÷ 2 = 12. The box was 12 inches long.
The equation for exponential decay is

, where <em>a</em> is the initial amount, <em>b</em> = 1 + <em>r</em> (the growth rate as a decimal number) and <em>x</em> is the number of time periods (in this case, minutes). Substituting the information we have:

. To the nearest tenth of a gram, this would be 1.0 grams.
Answer:
A. The vector goes from (4, 0) to (3, -2).
Step-by-step explanation:
The tail of the vector is on the point (4, 0). The head of the vector is on the point (3, -2). Only answer choice A correctly identifies both of the points associated with the vector.