The population of a local species of dragonfly can be found using an infinite geometric series where a1 = 30 and the common ratio is 2/5. write the sum in sigma notation and calculate the sum that will be the upper limit of this population.

50 is the answer.

Step-by-step explanation:

We have, and common ratio d=2/5.

So, the general form of the geometric series is , for 'n' is from 1 to infinity.

Hence, the sum in sigma form = , where n goes from 1 to infinity.

Now, the infinite sum of geometric series =

i.e. = 50

Hence, the sum which will be the upper limit is 50

spinning a 1, 2, or 3. option d.

step-by-step explanation: when spinning a number graph up to 4, and aiming for any number less than 3, that automatically eliminates the number 4. now you have two numbers to spin on that are less than 3, but the number 3 is included in this question because it's no greater of an number than itself. i hope this you : )

17,000 is the correct answer.