riamovalles riamovalles
  • 16-10-2022
  • Mathematics
contestada

can someone help me answer this?

The first and third terms of an arithmetic series are 21 and 27 respectively.

a) Find the common difference of the series.

b) Find the sum of the first 40 terms of the series.​

Respuesta :

Otras preguntas

What is the number of positive integers not larger than 210 and not divisible by 2, 3 or 7?
Clip art, by default, is formatted as a(n) ____, which cannot be moved to a precise location on a page.
(tco 7) according to political scientist ira sharkansky, “all modern states are welfare states, and all welfare states are _____.”
Help with this math show my work
H is the interior of <JAK. <JAH=3x-8 degrees and <KAH= x+2 degrees. What is the measure of all angles?
Example 3 find the local maximum and minimum values and saddle points of f(x, y) = x4 + y4 − 4xy + 1. solution we first locate the critical points:
What are you 10 interesting facts about the 1930s in America
39 feet per minute is how many yards per second
For a perfectly competitive firm, the marginal cost curve is identical to the firm’s ________________
How far he drove, in miles?