What is the solution of StartRoot x + 12 EndRoot = x?
x = –3
x = 4
x = –3 or x = 4
no solution

x = 4      or x = -3

Step-by-step explanation:

Take square both the sides,

x² - x - 12 = 0

x² - 4x + 3x - 3*4 =0

x*(x - 4) + 3*(x - 4)= 0

(x- 4 )(x+3) =0

x -4 =0   or x + 3 = 0

x = 4      or x = -3

B)  x=4

Step-by-step explanation:

I just got a 100% on the unit test from EDGE.

fahrenheit

step-by-step explanation:

fahrenheit is more precise than celsius. the ambient temperature on most of the inhabited world ranges from -20 degrees fahrenheit to 110 degrees fahrenheit—a 130-degree range. on the celsius scale, that range is from -28.8 degrees to 43.3 degrees—a 72.1-degree range. this means that you can get a more exact measurement of the air temperature using fahrenheit because it uses almost twice the scale.