The probability that janice will attend math class today is 62%. the probability that ellie will attend math class if janice attends is 100%. ellie will not attend the class unless she hears from janice first. what is the probability that both will attend the class?

a. 73%
b. 100%
c. 81%
d. 62%

true, i don't really know what you're asking but from the info you provided im guessing the answer is true.

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.