19. There is no decline or decrease indicated on this graph. If growth were exponential, the graph would be concave upward, which it is not. There is continued growth indicated.

20. The percentage change from 2005 to 2010 is ...

(60 -20)/20 × 100% = 2 × 100% = 200%

One might compute an average rate of change per year of ...

200%/(5 yr) = 40%/yr

_____

<em>Additional comment</em>

As with any statement of percentage, you need to be very clear about what the base is.

Here, 100% is the number of farms in 2005, so an increase of 40% per year is an increase by 40% of the number in 2005. That is very different from 40% of the number in the previous year, which is how an annual percentage increase is usually interpreted. (The average annual rate of change is closer to 24% with respect to the previous year's number.)

3 0

2 years ago

(1) 3x + 9 and 5x + 15

Licemer1 [7]

Answer:

(1)3(x+3)

(2)5(x+3)

Step-by-step explanation:

(1) common taking

(2) common taking

6 0

2 years ago

Read 2 more answers

a person's rectangular dog pen for his dog must have an area of 300 square feet also the length must be 40 feet longer than the

Tema [17]

The with should be 7.5 feet

4 0

3 years ago