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
Otrada [13]
2 years ago
13

2, 5, 25/2 ​ ,... Find the 9th term.

Mathematics
1 answer:
Cloud [144]2 years ago
8 0

Step-by-step explanation:

seems to be multiplication, because the differences between the numbers change.

so, let's find the factor.

2 × f = 5

f = 5/2

5 × f = 5 × 5/2 = 25/2

ok, the factor 5/2 is confirmed.

a1 = 2

a2 = a1 × 5/2 = 2 × 5/2 = 10/2 = 5

a3 = a2 × 5/2 = a1 × 5/2 × 5/2 = 2 × 5/2 × 5/2 = 25/2

an = an-1 × 5/2 = a1 × (5/2)^(n-1) = 2 × (5/2)^(n-1)

a9 = 2 × (5/2)⁸ = 2 × 390,625/256 =

= 390,625/128 = 3,051.7578125

You might be interested in
43 points, 86 for brainliest! Answer correct!! Be wise! According to the image attached, whats the answer?
Snezhnost [94]

Answer:

p = 32\:  \: in

a = 49 {in}^{2}

Step-by-step explanation:

perimeter \\  = 8 + 8+8+8 \\  = 32 \:  \: in

area \\   1)3 \times 8 = 24 \\ 2)5 \times 5 = 25 \\   \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: = 49 {in}^{2}

hope this helps

brainliest appreciated

good luck! have a nice day!

6 0
3 years ago
Read 2 more answers
20 POINTS !!! ONLY HELP IF UR 100% SURE !!!
Arte-miy333 [17]
Your answer is C for sure I am!
8 0
3 years ago
Read 2 more answers
If x = false and y = false, is the statement: not x or not y<br> a) true<br> b) false
pantera1 [17]

Answer:

false

Step-by-step explanation:

X is equal to Y

therefore,

X = Y

X= false

Y = false

so,

false = false

6 0
2 years ago
Evaluate ba−1.2 when a=4 and b=12.
sergeinik [125]

Answer:

46.8

Step-by-step explanation:

3 0
2 years ago
Which parent function is represented by the table?
Alinara [238K]

Answer:A

Explanation:

4 0
3 years ago
Other questions:
  • Simplify the difference. (4w^2 – 4w – 8) – (2w^2 + 3w – 6)
    12·2 answers
  • During five days your drive 15.4 miles, 24.3 miles,10.4 miles,18.7 miles, and 7.5 miles. How many miles did you drive during tho
    13·2 answers
  • Read all of the statements about scale drawings below.
    13·1 answer
  • Write the following equation, then solve. The difference of four times a number, x and 12 is 28
    12·2 answers
  • le of 2.00 moles of nitric oxide (NO) gas was reacted withle of 2.00 moles of nitric oxide (NO) gas was reacted withle of 2.00 m
    14·2 answers
  • In order to determine the average price of hotel rooms in Atlanta, a sample of 64 hotels was selected. It was determined that th
    5·1 answer
  • Find the number that makes the ratio equivalent to 1:8.<br> 7:__
    12·2 answers
  • Use the spinner below for each of the following
    9·1 answer
  • Solve 3(4y + 6) greater equal to -2(3-6y) show work pls
    11·1 answer
  • Carmen wants to build a rectangular garden with a total area of 100 square feet. Label the rectangles with three different possi
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!