veronica177 veronica177

02-06-2021
Mathematics

contestada

Find the 8th term of the arithmetic sequence - 2x + 7,4x + 1, 10x – 5, ...

Respuesta :

jcherry99 jcherry99

03-06-2021

Answer:

Step-by-step explanation:

a1 = -2x + 7

d = 4x + 1 - (-2x + 7)

d = 4x + 1 + 2x - 7

d = 6x - 6

n = 8

a8 = -2x + 7 + (n-1)*d

a8 = -2x + 7 + (8 -1 ) * (6x - 6)

a8 = -2x + 7 + 7 * (6x - 6)

a8 = -2x + 7 + 42x - 42

a8 = 40x - 35

Answer Link

Otras preguntas

How would you call in other words to scold or punish severely

If X is the set of negative numbers and Y is the set of positive numbers, then the union of X and Y and 0 is the set of (A) all real numbers (B) all integers (C

What's the word for wandering about; tending to move around, travel

Choose the more precise measurement in the pair. A .) 6.7 mi or B.) 6 mi

The diameter of a cylinder is 6 feet 6 inches. The height of a cylinder is 12 feet 3 inches. What is the surface area? (feet squared)What is the volume?

A sound wave of 70 cm travels 840 m in 2.5 sec. What is the velocity and frequency of sound?

Amy raised £n for charity. Chris raised £18 more then any. The mean amount raised by the two of them is £45. Work out how much money each one of them raised

How do we use the Pythagoras theorem in "everyday life".

what is 12minus 2 multiply 6 plus 2 divide by 2

What's the other word stubborn; inflexible