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
Lady_Fox [76]
4 years ago
11

A recursive rule for an arithmetic sequence is a1=-2; an=an-1 -9

Mathematics
1 answer:
maksim [4K]4 years ago
5 0

Answer:

a_n = -9n +7 \,,\,\,\,n\geq1

Step-by-step explanation:

This is an arithmetic sequence with a common difference of -9. We use this fact to create an explicit rule:

a_n = -2 - 9(n-1)= -2 -9n +9 = -9n +7 \,,\,\,\,n\geq1

You might be interested in
The volume of Solid A is 171.5 m and the volume of Solid B is 500 m, If the solids are similar, find the scale factor of Solid A
Bond [772]

Answer:

The scale factor is 1.429

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its volumes is equal to the scale factor elevated to the cube

so

Let

z----> the scale factor

x----> volume of solid B

y ----> volume of solid A

z^{3}=\frac{x}{y}

we have

x=500\ m^{3}

y=171.5\ m^{3}

substitute

z^{3}=\frac{500}{171.5}

z=\sqrt[3]{\frac{500}{171.5}}=1.429

3 0
3 years ago
A chairman is to be randomly selected from six people: A, B, C, D, E, and F. Find the probability that B is not selected.
DIA [1.3K]
I’m not for sure but I think A
8 0
3 years ago
Read 2 more answers
3. Dan's credit card was lost on a vacation. He immediately reported it missing. The person who found it days later used it, and
Olenka [21]

The question is an illustration of the Truth in Lending Act, and Dan is responsible for paying $0

<h3>Truth in Lending Act</h3>

The Truth in Lending Act is simply an act that protects people from unfair charges on their credit cards, especially in case of theft and card misplacement.

<h3>The scenarios</h3>

From the question, we have the following scenarios

  • His card got lost
  • He reported
  • Someone else saw the card and purchased goods worth over $200

Because Dan reported when his card got lost, he is protected by the Truth in Lending Act (TILA).

Hence, Dan is responsible for paying $0

Read more about the Truth in Lending Act at

brainly.com/question/1979208

4 0
2 years ago
If a and b are supplementary angles and m∠a=2x+6and m∠b=x+3,find m∠a
aliya0001 [1]

Answer:

114

Step-by-step explanation:

Supplementary means that all the angles in your givens add up to 180 degrees.

Givens

<A + <B = 180

<A = 2x + 6

<B = x + 3

Solution

<A + <B = 180                   Substitute for <A and <B

2x + 6 + x + 3 = 180          Combine like terms on the left.

3x + 9 = 180                      Subtract 9 from both sides

3x = 180 - 9

3x = 171                             Divide by 3

x = 171/3

x = 57            

That's not your answer.

<A = 2x + 6

<A = 2*57

<A = 114

5 0
3 years ago
If y varies jointly as x and the cube of z and y=16 when x=4 and z=2 then y=0.5 when x=-8 and z=-3
KonstantinChe [14]

Answer:

k = 1/2

y = -108

Step-by-step explanation:

y varies jointly as x and the cube of z

y =kxz^3

We know y=16 when x=4 and z=2  so we can determine k

16 = k (4) 2^3

16 = k*4*8

16 = 32k

Divide each side by 32

16/32 = 32k/32

1/2 = k

y = 1/2 xz^3

Now y=? when x=-8 and z=-3

y = 1/2 * 8 (-3)^3

y = (1/2) *8 (-27)

y =4 (-27)

y = -108

6 0
4 years ago
Read 2 more answers
Other questions:
  • Keiko always takes her water bottle with her when she hikes, and she always
    9·1 answer
  • Solve the system of equations by elimination.<br><br> 2x+8y=10<br><br> -4x-9y=-13<br><br> x = y =
    12·1 answer
  • Which of the following shows that polynomials are closed under subtraction when polynomial 5x − 6 is subtracted from 3x2 − 6x +
    11·2 answers
  • The model represents x2 – 9x + 14. Which is a factor of x2 – 9x + 14? x – 9 x – 2 x + 5 x + 7
    8·2 answers
  • Round to the nearest tenth 5.63
    13·2 answers
  • dora reaches her goal of $ 400 in savings.she decide to set a new goal of $900.how many $100 bills will she need to reach $900 i
    6·2 answers
  • For a school fundraiser, Gerardo buys 4 raffle tickets and Maria buys 10 raffle tickets. Altogether, the school sells 100 ticket
    7·1 answer
  • When you find the surface area of a cube, you ________ the length of the cube and<br> multiply by 6
    12·2 answers
  • Need help please.......
    5·1 answer
  • Find the percent error if the estimate is $230 and actual amount is $245. Round to the nearest whole percent.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!