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
mash [69]
3 years ago
12

WILL GIVE BRAINLIEST The sequence 7 21 63 189......shows the number of jumping jacks justin did each week, starting with the fir

st week of him working out.
A. is the sequence arithmetic or geometric? how do you know?
B. What is the recursive rule for the sequence?
C. what is the iterative (explicit) rule for the sequence.
Mathematics
1 answer:
vovangra [49]3 years ago
3 0

A

this is a geometric sequence since there exists a common ratio r between the terms

r = \frac{21}{7} = \frac{63}{21} = \frac{189}{63} = 3

B

to obtain the next term in the sequence multiply the previous term by 3

a_{n+1} = 3 a_{n} ← recursive rule

C

the n th term of a geometric sequence is

a_{n} = a_{1} r^{n-1}

where a_{1} is the first term in the sequence

a_{n} = 7 × 3^{n-1} ← explicit rule


You might be interested in
PLEASE HELP !! ILL GIVE BRAINLIEST !! 100 POINTS
nlexa [21]

Answer:

third option

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
the graph below shows the cost of tomato plants for each plant purchased. What is the cost of one tomato plant.​
dem82 [27]

Answer:

2.50

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
The ratio table shows that 4 pounds of tomatoes cost $14. Complete the
valina [46]

Answer:

1 tomato: $3.50

2 tomatoes: $7

3 tomatoes: $10.50

4 tomatoes: $14

Step-by-step explanation:

Ok, to start of if 4 tomatoes cost $14, that means 2 tomatoes cost $7. This probably means 1 tomato cost $3.50 and 3 tomatoes cost $10.50. Hope this helps!

4 0
3 years ago
At a pet store, an iguana eats 7 ounces of food for every 2 ounces a
zzz [600]
25 add them up Your welcome
8 0
3 years ago
01
aev [14]
The is The 103.8 Cause Of the math is correct
4 0
2 years ago
Other questions:
  • What is the slope of a line? With the equation d=420-65t
    7·1 answer
  • mark had to place 1 penny in the first bag. he would place 2 pennies in the next bag, 4 pennies in the bag after that, and 8 pen
    7·1 answer
  • What is the y-intercept of the line y = 2x - 5?
    10·1 answer
  • Explain when it is better to use a 20% off coupon and when it is better to use a $20 off coupon.
    11·1 answer
  • ∠3 ​ and​ ​ ∠4 ​ ​are complementary angles.<br><br> m∠4=49°<br><br> What is the measure of ​​ ∠3 ​?
    6·1 answer
  • Estimate.<br><br> 2.8 x 9.1
    7·2 answers
  • What is the measure of angle 1
    14·1 answer
  • Valerie shares some of the 12 candies from this box.she gives her friend 1 candy for every 3 candies she eats herself. How many
    11·2 answers
  • △ABC is a right triangle with right angle C. Side AC¯¯¯¯¯¯¯¯ is 6 units longer than side BC¯¯¯¯¯¯¯¯. If the hypotenuse has lengt
    15·1 answer
  • Exam help !!
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!