Which statement below is true? A) When the humidity is low, water droplets form on cold surfaces.
B) When wind speed is low, a windsock stays up in the wind and appears full.
D) When you go higher in the atmosphere, the air pressure gets lower.
C) When the air temperature is high, the air feels cold against your skin.

D

Explanation: Well as altitude rises, air pressure drops. Also im not sure if you meant to switch D and C since D is first but yeah ... hope this helps !

answer-

the statement that f(x) = |x+a| + b has exactly one x-intercept is sometimes correct.

solution-

it solely depends on b, whether the function will have one or two or zero x intercept.

this plot of the given function, f(x) = |x+a| + b will be the basic absolute value graph i.e v shape, with vertex translated to (-a, b), instead of origin.

1-   if b is zero, the graph will have exactly one x-intercept, at x= -a

2- if b is positive, the whole graph will be above the x-axis, hence it will have no x-intercepts.

3- if b is negative, the graph will be below the x-axis, hence it will have two x-intercepts.

∴ the statement is sometimes true.