Subtracting integers
11. -18-5
12. -6-6
13. -)
14. -13-8
15. )
16. 8-17
17. -)
18. -2-9
19. )
20. -13-8
21. -)
22. 3-5
23. -8-6
24. -)
25. )
26. -)
27. )
28. -3-10
29. -)
30. )

For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.

Will mark determine whether the conjecture is true or false. give a counterexample for any false conjecture. given: points r, s, and t conjecture: r, s, and t are coplanar. a) false; the points do not have to be in a straight line. b) true c) false; the points to not have to form right angles. d) false; one point may not be between the other two.

The diameter of the moon is about 3500 km. approximate the surface area of the moon using the formula for the surface area of a sphere, s = 4? r^2. write your answer in scientific notation.