## nuccioreggie one year ago Jake throws a dart that hits the square shown below: A square is drawn. A circle of radius 8 units touches the sides of the square. What is the probability that the dart hits a point in the circle? 16% 21.5% 64% 78.5% I got D

1. nuccioreggie

2. anonymous

the idea is that it is the ratio of the areas

3. nuccioreggie

Ok is d correct?

4. anonymous

square has area $$16^2$$ if i read it correctly

5. anonymous

circle has area $$64\pi$$

6. anonymous

calculate $\frac{64\pi}{16^2}$ use a calculator

7. nuccioreggie

Ok here it is so u can get it better

8. anonymous

yeah i got D too

9. anonymous
10. anonymous

go with D looks good

11. nuccioreggie

Ok can u help me with like 4 or 5 more please ill tag u ok?

12. anonymous

ok

13. anonymous

if i know them that is

14. nuccioreggie

Henry tossed a coin several times and recorded the number of heads and tails in the following table: Coin Experiment Side of Coin Number of Tosses Heads 12 Tails 18 What is the experimental probability of getting heads? 0.4 0.7 1.2 1.8

15. anonymous

experimental probability means "relative frequency: ratio of favorable to total

16. anonymous

total tosses?

17. nuccioreggie

I think c or b

18. anonymous

total tosses?

19. anonymous

yeah it has to be A or B must be less than one

20. nuccioreggie

Its A

21. anonymous

it is definitely $$\frac{12}{30}$$ reduce i guess

22. anonymous

yeah $$0.4$$

23. nuccioreggie

A paper cup is dropped and its landing position is recorded. The cup can land on the side, on the open end, or on the closed end. The results of 20 trials are shown in the table below: A chart shows tally marks. Main title for the chart is Paper Cup Experiment. The title for the second column is Number of times occurred. The tally mark corresponding to open shows a set of 4 vertical lines cut by a slanting line. The tally mark corresponding to closed shows a set of 4 vertical lines cut by a slanting line. The tally mark corresponding to side shows 2 sets of 4 vertical lines cut by a slanting line. Based on the table, which of the following best compares the experimental probability of the cup landing on its open end with the experimental probability of the cup landing on its closed end? The probabilities are equal. The probability of landing on the open end is greater. The probability of landing on the closed end is greater. No conclusion can be made.

24. nuccioreggie

Its C i think

25. anonymous

i can't really understand that

26. nuccioreggie

Ok 1sec

27. nuccioreggie

Here it is

28. anonymous

open and closed are the same right? both five

29. anonymous

so equal

30. nuccioreggie

Yea i say. c

31. anonymous

not C, A

32. nuccioreggie

But its an extra one at the bottom

33. anonymous

let me look again

34. anonymous

no looks like 5 and 5 to me