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
Neko [114]
3 years ago
6

Please help! I am supposed to write a recursive and an explicit function for the geometric sequence but this one is really frust

rating me. Thank you!

Mathematics
1 answer:
makkiz [27]3 years ago
7 0

Step-by-step explanation:

Initially, there's only 1 letter.

Tania sends the letter to 4 friends.

Each friend sends a letter to 4 more friends (4 × 4 = 16).

Each of those friends sends to 4 more friends (16 × 4 = 64).

The pattern is 1, 4, 16, 64, etc.

This is a geometric sequence.  The first term is 1 and each term is 4 times the previous term.

a₁ = 1

aₙ = 4 aₙ₋₁

The explicit formula is:

aₙ = 1 (4)ⁿ⁻¹

You might be interested in
I WILL MARK BRAINIEST
Allushta [10]
It’s 2x the size I believe :)
5 0
3 years ago
Identify the initial amount a and the rate of decay r (as a percent) of the exponential function g(t) = 240(0.75)^t Evaluate the
Xelga [282]

A=240Answer:

Step-by-step explanation:

6 0
3 years ago
A. F(x) < 0 on the interval x < 0.
KiRa [710]

f(x) > 0 - I and II quadrant

f(x) < 0 - III and IV quadrant

Look at the picture.


A. F(x) < 0 on the interval x < 0.     TRUE

B. F (x) > 0 on the interval x <0.      FALSE

C. F (x) < 0 on the interval 0 < x < 1.      TRUE

D. F (x) > 0 on the interval 0 < x < 1.      FALSE

E. F (x) < 0 on the interval 1 < x < 3.     FALSE

F. F (x) > 0 on the interval 1 < x < 3.      TRUE

G. F (x) < 0 on the interval x > 3.     TRUE

H. F (x) > 0 on the interval x > 3.      FALSE    

3 0
3 years ago
Approximately 54% of mathematics students do their homework on time. In a class of 250 students, what is the mean, variance, and
sleet_krkn [62]

Answer:

A) Mean = 135 Variance = 62 Standard Deviation = 8

Step-by-step explanation:

Given that :

Proportion (p) = 54%

Sample size (n) = 250

Using Normal approximation :

Mean = np

Mean = 250 * 0.54 = 135

Variance = npq ; q = 1 - p = 1 - 0.54 = 0.46

Variance = (250 * 0.54 * 0.46) = 62.1 = 62

Standard deviation = √variance = √62.1

Standard deviation = 7.8803553 = 8

6 0
3 years ago
Giving correct answer brainlyest!!
Tresset [83]

Answer:

36

Step-by-step explanation:

brainliest

3 0
3 years ago
Read 2 more answers
Other questions:
  • The diameter of a spherical basketball is 10in, what is the volume of the basketball?
    6·2 answers
  • A 189 square foot rectangular office has a length of 21 feet. What is the width of the office?
    8·2 answers
  • #4 Fill in the missing value in<br> the table below:
    14·2 answers
  • Please help me. Need it.
    9·1 answer
  • On a coordinate plane, parallelogram H I J K is shown. Point H is at (negative 2, 2), point I is at (4, 3), point J is at (4, ne
    9·1 answer
  • How would I solve the slope for an equation Please help me now I need it Thanks and whoever answers first with a good answer wil
    10·2 answers
  • Write 6/10 as a terminating decimal&lt;br /&gt;
    15·1 answer
  • In how many year the interest will became equal to the principal is rs.1200 is deposited at the rate of 25% in a bank ​
    7·1 answer
  • Gffffffffffffffffffffffffffffffffffffffffffffffffffffff,,,,
    8·1 answer
  • What is the radius of a hemisphere with a volume of 1773 cm”, to the nearest tenth
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!