What Are The First And Last Terms Of An Arithmetic Sequence When Is Arithmetic Means Are 35,15 And -5?

What are the first and last terms of an arithmetic sequence when is arithmetic means are 35,15 and -5?

 

Answer:

first term 55 last term -25

Step-by-step explanation:

first term 55

55 - 20 = 35

second term 35

35 - 20 = 15

third term 15

15 - 20 = -5

fourth terms -5

-5 - 20 = -25

last term 25

d=20

greatest to lowest......


Comments

Post a Comment

Popular posts from this blog

Enumerate The Parts And Function Of The Circulatory System

Enumerate the parts and function of the circulatory system   Answer: The circulatory system consists of four major components: Heart : About the size of two adult hands held together, the heart rests near the center of the chest. Thanks to consistent pumping, the heart keeps the circulatory system working at all times. Arteries : carry oxygen-rich blood away from the heart and where it needs to go. Veins : carry deoxygenated blood to the lungs where they receive oxygen. Blood : is the transport media of nearly everything within the body. It transports hormones, nutrients, oxygen, antibodies, and other important things needed to keep the body healthy. There are three different types of circulation that occur regularly in the body: Pulmonary circulation : This part of the cycle carries oxygen-depleted blood away from the heart, to the lungs, and back to the heart. Systemic circulation : This is the part that carries oxygenated blood away from the heart and to other parts o...
Read more

What Is The Solution Of This Answer??

Image
What is the solution of this answer??   First, lets factor it out. Lets find the factors of 9, we have 1, 9. Then, lets find the factors of d^2, it gives us d and another d. Make 2 parentheses. ( )( ) Fill it with 2 "d"s (d )(d ) Since the quadratic equations operations are all addition put the symbol "+" in the parentheses, right after d. (d + )(d + ) Next, put 1 and 9 after the "+" symbol (d + 1)(d + 9) Lets check if its right! Apply the FOIL METHOD F = d • d O = 9 • d I = 1 • d L = 9 Resulting to, d^2 + 9d + d + 9 Then simplify d^2 + 10d + 9 So its correct! Finally, separate the two factors (d + 1) --- (d + 9) Do this, (d + 1) = 0 (d + 9) = 0 Equate the two "d"s On the first equation, subtract 1 to both sides making d = -1 On the second equation, subtract 9 to both sides making d = -9 There you have it! The solutions are -1 and -9
Read more