X² + ___ x + 49 plz answer as soon as possible

Step-by-step explanation:

Square of a sum formula:

x² + ___ x + 49

The value of a is x.

The value of b is 7, since 7² = 49.

The missing coefficient is 14.

answer: 25.4 units

step-by-step explanation: radius = 12.7 units

diameter = twice the radius

diameter = 12.7 x 2

= 25.4

answer: there are x+184 pages in olivia's book.

step-by-step explanation:

let the total number of pages in the book which olive has already read be x.

then if olive has 184 pages left to read, then the total number of pages are in olive's book= pages she has read+pages she has left to read

therefore, the total number of pages in olivia's book=

hence, there are x+184 pages in olivia's book.