Geometric Sequence 4, -12, 36

Geometric sequence 4, -12, 36

 

Answer:

It is geometric Sequence

Step-by-step explanation:

{a}n = a_{1} {r}^{n - 1}

r=a2/a1

r=-12/4

r=-3

find a4

a4 = (4)( - 3 ^{4 - 1} ) \\ a4 = (4)( { - 3}^{3} ) \\ a4 = (4)( - 27) \\ a4 = - 108

#JuneChallenge


Comments

Post a Comment

Popular posts from this blog

Can Society Have Needs And Aims?

Can society have needs and aims?   Yes. Society is made up of different people, with different backgrounds, beliefs, perspectives and point of views. But the thing that makes a society is the commonality among those . For example during election, we vote for a politician because there is something similar from your advocacy and to what he/she is pushing through. This means that there is a common societal need that every society should have. Our orderly interdependence brings a kind of positive relationship among the members of society. It is this positive relationship that brings the positive contribution as a whole and cooperation among individuals of a particular society.   In history, our societal aims and needs continues to change, evolve and develop. We have developed some unsaid rules, and values among ourselves. Though, some of the main aims of society is to continue to exist and let others live, grow up each day. In this way, our society enables us to be more cooperative i
Read more

The Sides Of The Ladder Are Made Up Of Alternating ___________And_______________ Molecules. The Steps (Or Rungs) Of The Ladder Are Made Up Of ________

The sides of the ladder are made up of alternating ___________and_______________ molecules. The steps (or rungs) of the ladder are made up of ____________ held together by hydrogen bonds.   DNA Modeling Question: The sides of the ladder are made up of alternating ___________and_______________ molecules. The steps (or rungs) of the ladder are made up of ____________ held together by hydrogen bonds. Answer: The sides of the ladder are made of alternating sugar and phosphate molecules.  The rungs of the ladder are made up of nitrogen bases held together by hydrogen bonds. Definitions: DNA or deoxyribonucleic acid is the hereditary material in humans and almost all other organisms. DNA controls the production of proteins within the cell. These proteins in turn, form the structural units of cells and control all chemical processes within the cell. Think of proteins as the building blocks for an organism, proteins make up your skin, your hair, and parts of individual cells. How
Read more

Identify The Various Water Resources On Earth.

Identify the various water resources on earth.   Water Resources – Conservation and Protection Water Resources: In the air On the surface Below the ground Explanation: Water can be found in the air. The air in the atmosphere contains varying amount of water vapor depending on the weather. This air is part of the water cycle which is considered a natural process of the earth. Loosely put, water evaporates out of the different bodies of water. It is carried up into the atmosphere, where it is collected as clouds or water vapor buildups. As the clouds reach the saturation point, water droplets will form, which come as rain. This rain runs off the land and collects into bodies of water, where the whole process begins repeatedly. Water can also be found on the surface of the earth. Only 4% of the water stays on the earth's surface. Surface waters include aquifers, lakes, ponds, reservoirs, rivers, streams and wetlands or the blue waters which hold only about .3% of the Earth
Read more