One thousand adults were asked about seat belt usage. Gender was also recorded for each person. The data are summarized in the table below. What percentage of males
always wore seat belts?
Never Use
Seat Belt
Sometimes
Use Seat Belt
Always Use
Seat Belt
Total
Males
50
120
330
500
Females
75
100
325
500
Total
125
220
655
1000

Ascatterplot is produced to compare the size of a school building to the number of students at that school who play an instrument. there are 12 data points, each representing a different school. the points are widely dispersed on the scatterplot without a pattern of grouping. which statement could be true

Is the power produced directly proportional to the wind speed, give reasons for your answer?

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)