Suppose that a customer service center claims that the telephone calls it receives last 112 seconds on average, with a standard deviation of 9 second. if you took a sample of 324 telephone calls, which of the following mean times would be within the 95% confidence interval

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

Astudent draws two parabolas both parabolas cross the x axis at (-4,0) and (6,0) the y intercept of the first parabolas is (0,-12). the y intercept of the second parabola is (0,-24) what is the positive difference between the a values for the two functions that describe the parabolas

Vertical angles must check all that apply