(6 pts) 4. Lin and Clare were standing in the woods near a stream, and each threw a stone up in the air at the same time so that it would land in the water. The graph represents the helght of a stone t seconds
after it was tossed up by Lin.
height (feet)
time (seconds)
The function f given by S()=(-161 - 8) (1 - 1) represents the height of a stone tseconds after it was
thrown by Clare. In both functions, height is measured in feet.
1) Whose stone hit the water first?(1pt) When did that happen?(1pt)
2) Clare's stone reached its maximum height á second after it was tossed. Did Clare's stone reach a higher
maximum than Lin's stone?(1pt) Explain your reasoning(1pt)
3) What was the maximum height of Clare's stone?(1pt) Explain your reasoning. (1pt)

In tossing one coin 10 times, what are your chances for tossing a head? a tail? 2. in tossing one coin 100 times, what are your chances for tossing a head? a tail? 3. in tossing one coin 200 times, what are your chances for tossing a head? a tail? deviation = ((absolute value of the difference between expected heads and observed heads) + (absolute value of the difference between expected tails and observed tails)) divided by total number of tosses. this value should always be positive. 4. what is the deviation for 10 tosses? 5. what is the deviation for the 100 tosses? 6. what is the deviation for 200 tosses? 7. how does increasing the total number of coin tosses from 10 to 100 affect the deviation? 8. how does increasing the total number of tosses from 100 to 200 affect the deviation? 9. what two important probability principles were established in this exercise? 10. the percent of occurrence is the obtained results divided by the total tosses and multiplied by 100%. toss the coins 100 times and record your results. calculate the percent occurrence for each combination. percent head-head occurrence: percent tail-tail occurrence: percent head-tail occurrence:

Convert (-3,0) to polar form. a. (3,0’) b. (-3,180’) c. (3,180’) d. (3,360’)

Ne height of zak is 1.86 metres. the height of fred is 1.6 metres. write the height of zak as a fraction of the height of fred. give your answer in its simplest form.