By what means has the overuse of antibiotics in medicine and agriculture lead to the current global problem of antibiotic resistance? The overuse of antibiotics significantly increases the bacterial mutation rate, causing more antibiotic-resistance mutations to occur.
Humans develop an immunity to antibiotics, rendering them ineffective.
Indiscriminant use of antibiotics selects for resistant bacteria and increases their numbers.
Antibiotic resistance is a fabricated problem used to sell newer and more expensive antibiotics.

a=c and then d= c because of the band so you get ac/dc and you add them together you get sound waves

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.