Sam applies a force at 30° to the horizontal to move a football tackling dummy 10 m horizontally. He does 160 J of mechanical work. Determine the magnitude of the force by using vector dot product.

1. what are the missing reasons in the proof 2. it's in the second picture and 3

Student price tickets to a movie are $1 and non student tickets are $2 . 350 tickets are sold and the total amount made is $450. there were 250 student tickets sold . true or false .

Now 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.