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
statuscvo [17]
3 years ago
6

Find a formula for the nth term of the sequence 1 -4 9 -16 25

Mathematics
1 answer:
ZanzabumX [31]3 years ago
5 0
X² n = 1,2,3,4,5

1² = 1
2²= 4
3²= 9
You might be interested in
Find the Maclaurin series for f(x) using the definition of a Maclaurin series. [Assume that f has a power series expansion. Do n
Mazyrski [523]

We can use the fact that, for |x|,

\displaystyle\frac1{1-x}=\sum_{n=0}^\infty x^n

Notice that

\dfrac{\mathrm d}{\mathrm dx}\left[\dfrac1{1-x}\right]=\dfrac1{(1-x)^2}

so that

f(x)=\displaystyle\frac5{(1-x)^2}=5\frac{\mathrm d}{\mathrm dx}\left[\sum_{n=0}^\infty x^n\right]

f(x)=\displaystyle5\sum_{n=0}^\infty nx^{n-1}

f(x)=\displaystyle5\sum_{n=1}^\infty nx^{n-1}

f(x)=\displaystyle5\sum_{n=0}^\infty(n+1)x^n

By the ratio test, this series converges if

\displaystyle\lim_{n\to\infty}\left|\frac{(n+2)x^{n+1}}{(n+1)x^n}\right|=|x|\lim_{n\to\infty}\frac{n+2}{n+1}=|x|

so the series has radius of convergence R=1.

5 0
3 years ago
Jane cycled 32km, correct to the nearest km.
o-na [289]

Answer:

31.5

and

32,4

Step-by-step explanation:

4 0
3 years ago
Please help fast i am struggling
klemol [59]
B is the correct answer for your question I do believe, I hope that helped you. If not I am sorry, I tried to answer fast for you.
6 0
3 years ago
A rectangular poster has an area of 190 inches squared. The height of the poster is one inch less than twice its width. Find the
Annette [7]
Set the height to h, and the width to w.

We know that wh=190 and h=2w-1.

Substituting 2w-1 for h, we have:

w(2w-1)=190

So:
2w^2-w-190=0

Factoring this equation, we get (2w+19)(w-10)=0.  The solutions to this equation are -9.5 and 10, but clearly the width must be positive, Substituting 10 for the width, we get 10*2-1=19 for the height.
4 0
3 years ago
A graph cannot be shift vertically and horizontally true or false
hodyreva [135]
NO, any graph can be shifted horizontally and/or vertically
6 0
3 years ago
Other questions:
  • √(27.6÷0.57= ) who knows the answer to this
    8·2 answers
  • The amount of calories consumed by customers at the Chinese buffet is normally distributed with mean 2984 and standard deviation
    13·1 answer
  • There are 3 cards lettered A, B, and C and a 6 sided die. If you draw a card and then rolled the die, what is the P(A3)?
    13·1 answer
  • Hello, My Cousin Needs Help (She Said Do The Even Numbers) PLEASE
    5·1 answer
  • The city council wants to find out if city residents would be willing to pay higher taxes for improvements to the city's parks.
    9·2 answers
  • Is -0.5 an integer? Explain.​
    11·2 answers
  • HELP PLEASE!! ill give brainiest <3
    15·2 answers
  • Here is my question in a pic​
    12·2 answers
  • Please help due today
    11·1 answer
  • Help me solve this problem plsssss ​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!