1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
In-s [12.5K]
3 years ago
6

The population of a local species of dragonfly can be found using an infinite geometric series where a1 = 42 and the common rati

o is three fourths. Write the sum in sigma notation and calculate the sum that will be the upper limit of this population.
Mathematics
2 answers:
Scilla [17]3 years ago
8 0


Since this is the formula for the infinite geometric series with
a1 = 42
r = 3/4

Solution will be

sum = 42 / 1-3/4
sum = 42 / 0.25
sum = 168

Therefore, the total is 168






JulsSmile [24]3 years ago
4 0

Answer: the answer is D


Step-by-step explanation: We can immediately eliminate options A and B because they aren’t even formatted properly. The common ratio(3/4) ALWAYS comes after a_1 which in this case was 42. That leaves us with C and D. Now, for series to be divergent, the common ratio(number in parentheses) HAS to be GREATER than one. Since this equation has 3/4 or .75 in the parentheses it is NOT divergent. That leaves us with answer choice D, and the answer is 168. My friend above explains how to get to that answer. Thanks and please rate.


You might be interested in
A sewing machine can sew 500 stitches in 2/3 min.<br><br> Complete the unit rate.
Nesterboy [21]
500 stiches/2/3 min = 750 stiches per minute
7 0
3 years ago
Read 2 more answers
Help me pleaseeeeeee
castortr0y [4]
Use the fomula a_(n)= a_(1)+ d(n-1)
4 0
3 years ago
A right rectangular prism is 5 inches long 12 inches wide and 8 inches tall
kolbaska11 [484]
The volume is 480. Hope this helped
4 0
3 years ago
Read 2 more answers
The equation yˆ=459.678x+1588.906 models the weekly profit of a business, in dollars, where x is the number of radio advertiseme
Tema [17]
<span>Without any radio advertising, the weekly profit would be about $1600.</span>
4 0
3 years ago
Read 2 more answers
A furniture store has a sale during which the sale price of a sofa is 1/3 off its original price. The original price
dmitriy555 [2]

Answer:

$694.06

Step-by-step explanation:

OG price= 1,029

discount=.05

sales tax =.065

1/3(og price)=1/3(1029)=343

one third of $1,029 is 343, hence we take off $343 from the orginial price

1029-343= $686--> sales price

.05*salesprice= .05*686=34.3

subtract 5% discount: 686-34.3= $651.71

=find 6.5% tax: .065*651.71= $42.36

add 6.5% tax:  651.81+42.36=694.06

4 0
2 years ago
Other questions:
  • Are irrational numbers terminating
    12·1 answer
  • Jenny is eight years older then twice her cousin sues age. The sum of their ages is less then 32. What is the greatest age that
    7·1 answer
  • Josie is making pizza dough. Complete the double number line by filling in the missing values. Then write an equation that model
    15·1 answer
  • Find the degree of the polynomial -2х2 +х+ 2.
    11·2 answers
  • Need some help on this. any help is appreciated :) !!
    14·1 answer
  • Plz helppppp fastttttttt
    12·1 answer
  • Help with question 1 &amp; 2 pls .
    14·1 answer
  • At the store. Jane bought a t shirt for $12.50 and a pair of jeans for $5.00 more than twice the price of the shirt. If she paid
    8·1 answer
  • Plz help me plz plz plzpzzmmx​
    10·1 answer
  • Your cell phone bill in August was $61.43, which was $21.75 more than your bill in July. Your cell phone bill in July was $13.62
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!