One nurse working in the night shift admitted all of the infected newborns. Electronic monitors on the sink and hand sanitizer recorded 70% less use during the night shirt than during the other shifts. Sterile swans dipped in nutrient broth were rubbed over the fingertips and under the nails of both hands of each nurse. Proteus is one of the most common organisms in the skin microbiome of dogs and is found in most areas of human

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.