Which of the following represents a polynomial expression?

Select one:
A. 2x + 3log(x) + 5
B. 10x−−√ − 2
C. (x + 1)(x - 1)
D. 4x + 2(3x + 3)

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

45 was divided by a power of ten to get 4.5. what power of ten was it divided by? people 4.5

If you answer 2+2 you will get over 80 points