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
Mandarinka [93]
3 years ago
6

The geometric sequence that tells the perimeter of each stage in the building of Koch's snowflake has a first term of 3 and a ra

tio of 4/3.
At the 18th stage in the construction of this snowflake, the length of each tiny side would be about the size of an atom! Using the explicit formula for the nth term of a geometric sequence, what is the length of the perimeter a18 to the nearest whole number?

A. 399
B. 299
C. 200
D. 133
E. 99
Mathematics
1 answer:
kari74 [83]3 years ago
4 0
An = a1 * r^(n-1)
n = term to find = 18
a1 = first term = 3
r = common ratio = 4/3
now we sub

a18 = 3 * 4/3^(18 - 1)
a18 = 3 * 4/3^17
a18 = 3 * 133
a18 = 399
You might be interested in
Twice the difference of a number and 8 is 6<br><br> Write an equation using variable w
Sauron [17]

Answer:

8w-2=6

Step-by-step explanation:

7 0
3 years ago
Help, this is due now... HELP
kkurt [141]

Answer:

100 1/4

Step-by-step explanation:

8 0
3 years ago
Someone help!!! PLEASE BE QUICK.... <br> **BONUS POINTS**
Tatiana [17]

Answer:

884cm^2

Step-by-step explanation:

top triangle area=21*24/2=252

central triangle area=16*24/2=192

left n right triangle area (each)=22*20/2=220

total area of wood needed=252+192+220+220

=884cm^2

6 0
3 years ago
Read 2 more answers
According to a Gallup survey conducted in July 2011, 20% of Americans favor reducing the U.S. budget deficit by using spending c
Yakvenalex [24]

Answer:

Option C is correct.

The test statistic for this question is -3.13

Step-by-step explanation:

To compute the z-test statistic, the formula is given as

z = (x - μ₀)/σₓ

x = p = sample proportion of the 500 college students sampled, that favor reducing the deficit using only spending cuts with no tax increase = (75/500) = 0.15

μ₀ = p₀ = the proportion to be compared against, that is, the proportion of Americans that favor reducing the U.S. budget deficit by using spending cuts only, with no tax increases = 20% = 0.20

σₓ = standard error of the sample proportion = √[p(1-p)/n]

p = 0.15

n = Sample size = 500

σₓ = √[0.15×0.85/500] = 0.01597

z = (0.15 - 0.20) ÷ 0.01597

z = -3.13

Hope this Helps!!!

8 0
3 years ago
Each table below lists the squared residuals for a line of fit for a certain set of data points. Find the sum of the squared res
viva [34]

Answer:

c

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • How to solve |3x-6|&lt;30
    8·2 answers
  • Use a ratio to compare the values. Simplify the ratio<br>5m to 100cm
    5·1 answer
  • At a coffee shop, 70% of the customers buy a coffee drink, 30% buy food, and 20% buy both a coffee drink and food. Are buying fo
    15·2 answers
  • 73,104 is 192% of what number?
    6·1 answer
  • PLEASE HELP! Seven nouns, five verbs, and two adjectives are written on a blackboard. How many ways are there to form a sentence
    10·2 answers
  • Help please!! Don't understand can someone explain?
    7·1 answer
  • Make y the subject of w=x2-2yz
    8·2 answers
  • Factor the triomial x2-8x+15
    15·1 answer
  • 100 POINTS!!!!!!! I WILL GIVE BRAINLIEST!
    7·1 answer
  • Please help can't get this wrong.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!