Mr. knotts found the difference of the following expression. which statement is true about mr. knott's work?
step 1: (x+ 1}x=15 +1
1(x+1)
step 2: (x + 1)(x-1)
(x + 1)(x-1)
x-x+1
step 3: (x + 1)(x-1)
step 4
(x+ 1)(x-1)

The temperature of chicken soup is 192.7°f. as it cools, the temperature of the soup decreases 2.3°f per minute. what is the temperature in degrees fahrenheit of the soup after 25 minutes? a. 27.3°f b. 57.5°f c. 135.2°f d. 250.2°f

Angle xyz is formed by segments xy and yz on the coordinate grid below: a coordinate plane is shown. angle xyz has endpoints at 3 comma negative 1 and 6 negative 2 and 3 comma negative 3 and measures 36.87 degrees. angle xyz is rotated 270 degrees counterclockwise about the origin to form angle x′y′z′. which statement shows the measure of angle x′y′z′?

What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? explain your reasoning.