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
vagabundo [1.1K]
3 years ago
15

Identify the pattern rule for this sequence: 20, 80, 40, 160, 80, 320…

Mathematics
2 answers:
Elena-2011 [213]3 years ago
8 0

Answer:

multiplies by 4 then divides by 2

Step-by-step explanation:

cupoosta [38]3 years ago
4 0

Answer:

See step by step.

Step-by-step explanation:

20 * 4 = 80

80 / 2 = 40

40 * 4 = 160

160 / 2 = 80

80 * 4 =320

if x is Nth number in the sequence:

if N is odd:

x = 20 * 4^{(N-1)/2} / 2^{(N-1)/2}

if N is even:

x = 20 * 4^{(N)/2} / 2^{(N)/2-1}

You might be interested in
Eva gathered samples for the average monthly temperatures of two cities and calculated the five number summaries. What conclusio
hodyreva [135]

Answer:

B.

Step-by-step explanation:

Resort to graph.

4 0
3 years ago
If the radius of a circle is 44 cm, then what is the diameter?
solmaris [256]

Answer:

88cm

Step-by-step explanation:

d=2r=2·44=88cm

3 0
2 years ago
Read 2 more answers
Which of the following is a perfect square trinomial?
marissa [1.9K]

Answer:

a. x² + 10x + 25

Step-by-step explanation:

because

(x + 5)² = (x + 5)(x + 5) = x² + 5x + 5x + 25 = x² + 10x + 25

so, it is a perfect square of (x + 5).

4 0
1 year ago
If the zeros of a quadratic function, F, are -2 and 4, what is the equation of the axis of symmetry of F
vagabundo [1.1K]

Answer:

x=1

Step-by-step explanation:

if the zeroes are (-2,0) and (4,0), then the axis of symetry is going to be right in the middle of those two, with the graph reflected equally on either side.

so you get:

(4-2)÷2=1

therefore the equation of the axis of symetry is x=1

3 0
1 year ago
If a cube has a<br> volume of 8 cm<br> what is it's side<br> length?
lana [24]
Side length: 2 cm.

Volume of a cube:
V=a^3
(where V is volume, and a is side length)

If v=8, the formula would now be 8=a^3

Take the cube root of both sides

a=2.
5 0
3 years ago
Other questions:
  • On a snorkeling trip,Antonia dove at least 7 times as deep as Lucy did. If Antonia dove 35 feet below the oceans surface,what wa
    10·2 answers
  • Babatunde has a mass of 78kg. What would Babatunde weigh on the Moon? (The gravitational field strength on the Moon is 1.6N/kg.)
    9·1 answer
  • Manuel found a wrecked trans-am that he could fix he bought the car for 65% of the original price of $7200
    6·2 answers
  • At a sports store, three times as many football as volleyballs were sold a total of 3,252 football were sold how many volleyball
    5·1 answer
  • Tính giá trị 2a+ 3=? với a=1
    11·1 answer
  • You want to buy a pet lizard that costs ​$45. You already have ​$14 and you plan to save ​$7 per week. If w represents the numbe
    11·1 answer
  • PLZS help need by today!
    7·1 answer
  • Solve each system by elimination.<br>-20x - 16y = -20<br>10x + 8y = 10​
    13·1 answer
  • How many centimeters are in 28 ft? (1 ft = 12 in., 1 in. = 2.54 cm)<br> SOMEOnE HELP MEH PLEASE
    11·2 answers
  • Part 1: Bob got tickets for himself and his son to go to a Saints game. Parking at the Dome is $20. If Bob spent $120 on tickets
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!