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
Degger [83]
2 years ago
7

Write a rule for the sequence. 3, -3, -9, -15. A. Start with 3 and add -6 repeatedly B. Start with -6 and add 3 repeatedly C. St

art with 3 and 6 repeatedly D. Start with 3 and subtract -6 repeatedly
Physics
1 answer:
faust18 [17]2 years ago
7 0

Substract two consecutive terms of the sequence to see if there is a common difference:

\begin{gathered} (-3)-(3)=-3-3=-6 \\ (-9)-(-3)=-9+3=-6 \\ (-15)-(-9)=-15+9=-6 \end{gathered}

As we can see, there is a common difference of -6.

Then, if a number of the sequence is given, the next one can be found by adding -6 (which is the same as subtracting 6).

Notice that the first term of the sequence is 3.

Then, the rule for the sequence is to start with 3 and add -6 repeatedly.

Therefore, the correct choice is option A) Start with 3 and add -6 repeatedly.

You might be interested in
A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of the field is changing, so that a
scoundrel [369]

To solve this problem we will apply the concepts related to magnetic flux and induced voltage. This last expression understood as the variation of the magnetic flux over time and, in turn, the magnetic flux expressed as the variation of the magnetic field in a certain area.

Magnetic flux through the circular coil is given as

\Phi_C = B(\pi r^2)

The induced voltage is the change of the magnetic flux across the time, then

\epsilon_{emf,C} = \frac{B(\pi r^2)}{t}

At the same time the magnetic flux through the square coil would be given as,

\Phi_S = B(r^2)

And the induced voltage EMF will be

\epsilon_{emf,s} = \frac{B(r^2)}{t}

Equating both expression we have

\epsilon_{emf,s} = \frac{\epsilon_{emf,C}tr^2}{\pi r^2t}

\epsilon_{emf,s} = \frac{0.74V}{\pi}

\epsilon_{emf,s} = 0.23355V

Therefore the emf induced in the square coil is 0.23355V

7 0
3 years ago
It is a way to display to number of ________ for elements. This chart will show the correlation between ______ number and the nu
pav-90 [236]

Answer:

Electrons

Atomic number

Explanation:

The question describes a period table which is a chart of the elements.

The Periodic Table of elements shows the arrangement of elements based on their increasing atomic number.

In a neutral atom, the number of electrons will equal the number of protons, so we can easily determine electron number from atomic number. In addition, the position of an element in the periodic table—its column, or group, and row, or period—provides useful information about how those electrons are arranged (electronic configuration) in their different shells.

It is a way to display to number of ____electrons____ for elements. This chart will show the correlation between __atomic____ number and the number of valence electrons

8 0
4 years ago
You are travelling by skateboard at 3.0 m/s and start to accelerate. If you
vovangra [49]

Answer: 8m/s

Explanation:

Vs= 3 m/s

Vf=?

a=0.5m/s²

t=10s

-----------

a=Vf-Vs/t

at=Vf-Vs

0.5*10s=Vf-Vs

5m/s=Vf-3m/s

5m/s+3m/s=Vf

Vf=8m/s

6 0
3 years ago
Write a scientific explanation to describe where earthquakes and volcanoes most commonly occur and their relation to plate bound
vovangra [49]
Earthquakes and volcanoes most commonly occur around plate boundaries because of the movement from the plate boundaries. The interactions between the plates by moving under, upon, or sliding against other boundaries may cause earthquakes and volcanoes.
4 0
3 years ago
A conducting loop is lying flat on the ground. The north pole of a bar magnet is grought down toward the loop. As the magnet app
IceJOKER [234]

Answer:

The current in the loop will flow in anticlockwise direction , and the magnetic field created by the induced current point up.

Explanation:

7 0
3 years ago
Other questions:
  • (1 pt) this problem is an example of critically damped harmonic motion. a hollow steel ball weighing 4 pounds is suspended from
    10·1 answer
  • Which statement best describes a characteristic of gases?
    15·1 answer
  • What can you do to reduce the electric uses within your home?
    13·1 answer
  • 3. With all my strength I throw a 300g snowball vertically in the air. l notice that the snowball has reached its highest point
    13·1 answer
  • A wave has a length of 8 meters and a speed of 32 meters per second. What is the frequency of the wave
    14·1 answer
  • Which are negative impact that the internal combustion engine has had on society
    9·2 answers
  • You have four fixed-volume containers at STP . Container A has 0.5 mol of gas in 11.2 L. Container B has 2 mol of gas in 22.4 L.
    9·1 answer
  • Do the ones your able too
    7·1 answer
  • A real number that is not a natural​
    12·1 answer
  • Using a balance, determine the mass of the ball and basket of the ballistic pendulum. Fire the ballistic pendulum
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!