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True [87]
3 years ago
11

Which of these sequences is a geometric sequence?

Mathematics
1 answer:
____ [38]3 years ago
8 0

Answer:

if we take ratio then answer is option D

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Hurry plz help plz don't do this for the points i will mark brainliest if given correct answer. For this item, complete the choi
Makovka662 [10]

Step-by-step explanation:

the answer is woman with elephants

8 0
3 years ago
A buoy floating in the sea is bobbing in simple harmonic motion with period 2 seconds and amplitude 8 in. Its displacement d fro
Mrac [35]

Answer:

The equation of the displacement d as a function of time t is :

d(t)=8sin(\pi t+\pi )

Step-by-step explanation:

Generally , A simple harmonic wave is a sinusoidal function that is it can be expressed in simple sin or cos terms.

Thus,

d(t) = Asin(wt+c)

is the general form of displacement of a SHM.

where,

  • <em>d(t) is the displacement with respect to the mean position at any time t</em>
  • <em>A is amplitude </em>
  • <em>w is the natural frequency of oscillation (rads^{-1})</em>
  • <em>c is the phase angle which indicates the initial position of the object in SHM (rad)</em>

given,

  1. Time period (T) = 2s
  2. A=8
  3. The natural frequency (w) and time period (T) is :

                               w=\frac{2\pi} {T}

∴

w = \frac{2\pi }{2}  = \pi rads^{-1}

∴

the equation :

<em>⇒d(t)=8sin(\pi t+c)    </em>                    ------1

since d=0 when t=o ,

<em>⇒0=8sinc\\c=n\pi                         ------2</em>

where n is an integer ;

<u>⇒since the bouy immediately moves in the negative direction , x must be negative or c must be an odd multiple of \pi.</u>

<em>⇒ d(t) = 8sin(\pi t+(2k+1)\pi )         ------3</em>

where k is also an integer ;

the least value of k=0;

thus ,

the equation is :

d(t)=8sin(\pi t+\pi )

<em></em>

7 0
3 years ago
Please help me:) thanks
nika2105 [10]

Answer:

B. Side <em>a</em> is 7 inches long and side <em>b</em> is 6 inches long.

Step-by-step explanation:

Since the scale drawing is three times bigger than the actual object, divide both numbers by three to find the object size.

Side a:

21/3 = 7 inches

Side b:

18/3 = 6 inches

6 0
3 years ago
Read 2 more answers
24 is 40%of what number
sladkih [1.3K]
60. 

Because 60x0.40 is 24
5 0
3 years ago
What is |-3|+|-2|? Please answer asap! Thank you
makvit [3.9K]
A - 24!

-21 as its true value is 21

-3 as its true value is 3

if you add them together you get 24!

Hope this helped ^^
5 0
3 years ago
Read 2 more answers
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