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
Kazeer [188]
3 years ago
15

Find an explicit rule for the nth term of the sequence. 2, -8, 32, -128, ...

Mathematics
1 answer:
Akimi4 [234]3 years ago
8 0
A1=2
a2=-8
a3=32
a4=-128

a2/a1=(-8)/2→a2/a1=-4
a3/a2=32/(-8)→a3/a2=-4
a4/a3=(-128)/32→a4/a3=-4

a2/a1=a3/a2=a4/a3=r=-4

an=a1*r^(n-1)
an=2*(-4)^(n-1)

The explicit rule for the nth term of the given sequence is an=2*(-4)^(n-1) 
You might be interested in
Determine the slope of the following graph.
evablogger [386]

Answer:

2/1 or 2

Step-by-step explanation:

if you find a spot were the line is line up with the boxes in the graph like at (-2,0) up 2 and right one you will see the line is lined up again and since slope is rise/run its 2/1 or 2

4 0
2 years ago
Please help need ASAP
andrey2020 [161]
Octagon is 309.02cm²
Pentagon is 172.05in²
7 0
2 years ago
Read 2 more answers
What is the value of x
harkovskaia [24]
Answer: x=37.8, you can solve by writing a proportion

7 0
3 years ago
Read 2 more answers
Helphelphelphelphelp​
Mkey [24]

Answer:1 7/8

Step-by-step explanation: 5 multiplied by 3 is 15 and 15/8 and since 8 goes into 15 once with 7 left over, the answer is 1 and 7/8

3 0
2 years ago
Read 2 more answers
What is 4/3 times 3/7=?
Sidana [21]
The answer is 4/7 in simplest form
3 0
3 years ago
Other questions:
  • What number equals 100 when squared?
    13·2 answers
  • To the nearest tenth, what is the length of the hypotenuse of an isosceles right triangle with a leg of 7
    9·2 answers
  • Brass is an alloy created using 80% copper and 20% zinc. If Henri's brass trumpet contains 48 ounces of copper, how many ounces
    6·1 answer
  • Solve the following quadratic equation using the quadratic formula.
    11·2 answers
  • Sam's test scores increase proportionally by 5 points for each hour she spends studying. How many points would her score increas
    10·2 answers
  • 170%of 40 is what number
    15·1 answer
  • Round 82290 times 240
    7·1 answer
  • A film starts at 15:35 and lasts 132 minutes. What time will it finish
    15·1 answer
  • At 9 a.m., a freight train leaves Boston for NY C, traveling at an average rate of 24
    15·1 answer
  • Is this function linear or nonlinear?​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!