emailaarushisarkar emailaarushisarkar

13-07-2020
Mathematics

contestada

If 18 , x , y , -3 are in A.P then find x + y.

Respuesta :

09pqr4sT 09pqr4sT

13-07-2020

Answer:

15

Step-by-step explanation:

If this is an arithmetic progression, then there is a common difference.

-3-18 = -21

-21/3 = -7

18 - 7 = x

x = 11

11 - 7 = y

y = 4

4 - 7 = -3

x + y

11 + 4 = 15

Answer Link

Otras preguntas

what is the importance of prehistory

What is extrinsic motivation? motivation that is stated directly in the text through the author's narration motivation that comes from an internal desire to do

what is another name for pi in Germany?

In a contraction, the apostrophe should always be placed A. just before the last letter. B. immediately after the last letter. C. between the first word and the

Analysis answers the question: ______. How does the writer say what he says? Does the writer get his point across? Was what the writer said worthwhile?

Which statement accurately describes the relationship between cytokinesis and mitosis? a. Mitosis includes interphase and cytokinesis. b. Cytokinesis precedes m

if you solve an equation by graphing each side as a separate line, which of the following corresponds to the solution of the equation?

what is the importance of prehistory

write each fraction as a unit fraction 12/84 13/143 23/138

After air is taken in through the mouth or nose, it travels through the _____. bronchi, trachea, and the lungs pharynx, trachea, and then the lungs diaphragm, a