A spinner has three sections which are coloured blue, yellow and pink. Harley spun the spinner 100 times in total. The frequency of spins that landed on yellow was 45. The ratio of the frequency of blue to the frequency of yellow was 4:9.

What is the estimated probability of the spinner landing on pink? Give your answer as a decimal.

An arrow is shot vertically upward at a rate of 180ft/s. use the projectile formula h=−16t2+v0t to determine at what time(s), in seconds, the arrow is at a height of 420ft. round your answer(s) to the nearest tenth of a second.

Someone answer asap for ! max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a. the median of max’s data is 250 b. more than half of the data points max recorded were 177 centimeters. c. a data point chosen at random is as likely to be above the mean as it is to be below the mean. d. every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

See attachment below and find the equivalent of tan(∠qsr)