10. The function y -- 161? + 56+ 18 models the height in feet of a soccer ball t seconds after it is kicked off of a patio deck 18 feet high. How long will it take the
ball to hit the ground? (Round answer to 3 decimal places.)

Astudy claims that the mean age of online dating service users is 40 years. some researchers think this is not accurate and want to show that the mean age is not 40 years. identify the null hypothesis, h0, and the alternative hypothesis, ha, in terms of the parameter μ. select the correct answer below: h0: μ≥40; ha: μ< 40 h0: μ≤40; ha: μ> 40 h0: μ≠40; ha: μ=40 h0: μ=40; ha: μ≠40