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
daser333 [38]
2 years ago
8

Find a recursive rule for the nth term of the sequence. 5, 20, 80, 320, ...

Mathematics
1 answer:
Ira Lisetskai [31]2 years ago
7 0

Answer:

a_1 = 5

a_n = 4a_{n - 1}

Step-by-step explanation:

a_1 = 5

20/5 = 4

80/20 = 4

320/80 = 4

This a geometric sequence with r = 4.

a_n = 4a_{n - 1}

Answer:

a_1 = 5

a_n = 4a_{n - 1}

You might be interested in
Simplify completely''''​
34kurt

Answer:

\displaystyle \frac{2(x + 3)}{5x - 2}

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

  • Terms/Coefficients
  • Factoring

Step-by-step explanation:

<u>Step 1: Define</u>

\displaystyle \frac{2x^2 + 16x + 30}{5x^2 + 13x - 6}

<u>Step 2: Simplify</u>

  1. [Fraction] Factor numerator:                                                                         \displaystyle \frac{2(x + 3)(x + 5)}{5x^2 + 13x - 6}
  2. [Fraction] Factor denominator:                                                                     \displaystyle \frac{2(x + 3)(x + 5)}{(x + 3)(5x - 2)}
  3. [Fraction] Divide:                                                                                           \displaystyle \frac{2(x + 3)}{5x - 2}
8 0
3 years ago
The Human Resources manager at a company records the length
luda_lava [24]

Answer:

the correct answer is 0.84

give brainliest plzzz

6 0
3 years ago
Find the product of z1 and z2, where z1 = 7(cos 40° + i sin 40°) and z2 = 6(cos 145° + i sin 145°).
Oduvanchick [21]
For two complex numbers z_1=re^{i\theta}=r(\cos\theta+i\sin\theta) and z_2=se^{i\varphi}=s(\cos\varphi+i\sin\varphi), the product is

z_1z_2=rse^{i(\theta+\varphi)}=rs(\cos(\theta+\varphi)+i\sin(\theta+\varphi))

That is, you multiply the moduli and add the arguments. You have z_1=7e^{i40^\circ} and z_2=6e^{i145^\circ}, so the product is

z_1z_2=7\times6(\cos(40^\circ+145^\circ)+i\sin(40^\circ+145^\circ)=42(\cos185^\circ+i\sin185^\circ)=42e^{i185^\circ}
3 0
3 years ago
Read 2 more answers
Melissa has a collection of different colored hair bows. Some of the hair bows are big, and some of the hair bows are small. The
Brilliant_brown [7]

Answer:

7/55 or 12.727272727273%

Step-by-step explanation:

7/55 or 12.727272727273%

7 big and pink

so 7/?

?= amount of bows

and them up and you get 55

7/55

4 0
3 years ago
Given that ∠A and ∠B are supplementary, Daisy conjectured that ∠A≅∠B .
dexar [7]
When two angles are supplementary, that means that the sum of their individual angles is equal to a straight line, which is 180°. If you add another restriction where the two supplementary angles are equal, then each vale of the angle constitutes half of 180°. Then, that means that ∠A = ∠B = 90°. The answer is C.
3 0
3 years ago
Read 2 more answers
Other questions:
  • the following data values represent a sample. what is the variance of the sample? x=9. use the information in the table to help
    6·1 answer
  • 35x+10. How do I solve this?
    7·1 answer
  • Aldo buys candy that costs $6 per pound. He will buy at most 9 pounds of candy. What are the possible amounts he will spend on c
    7·1 answer
  • 19.86 + 7.091 plz I have a test tomorrow
    9·2 answers
  • Two lines intersect at a point, forming ​ ∠1 , ∠2 , ∠3 , and​ ​ ∠4 ​ .
    13·1 answer
  • Richard started his walk at the ice cream shop. He reached the library and continued to the park. If Richard walks for a total o
    11·1 answer
  • Devaughn is 7 years older than Sydney. The sum of their ages is 95. What is Sydney's age?​
    5·1 answer
  • PLEASE HELP PLEASe!!!!
    11·2 answers
  • What is the area of the green (shaded) region?<br> 20 km<br> 11 km<br> 11 km<br> 18 km
    6·2 answers
  • Solve for inequality -6&lt;4x-2≤10
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!