(A) If the rocks are identical, then there are four ways:
38 singles
1 group of 10+28 singles
2 groups of 10+18 singles
3 groups of 10+8 singles
(B) If each rock is different from others then 38 rocks. In groups of 10 or singles.
Case 0: 0 group+38 singles
1 way
Case 1: 1 group+28 singles:
38C10=38!/(10!(28!))=472733756 ways
case 2: 2 groups of 10+18 singles 38C20*20C10=38!/(20!18!)*20!/(10!10!)/2!=3101868540350580 ways
Case 3: 3 groups of 10+8 singles
38C30*30C20*20C10/3!=45243854529553559880 ways
Total
=1+472733756+3101868540350580+45243854529553559880
=45246956398566644217 ways
Sorry that it is not possible to enumerate each of the ways, but just the total number of ways.
Answer:A
Step-by-step explanation:
40 ounces= 2.5 pounds
40 ounces= 1.13kg
Answer:
Yes
Step-by-step explanation:
You can define an angle of interest at any point of intersection of any real or virtual lines, curves, planes, or surfaces, or combination thereof. We often measure the angle between our present location and two different other locations (horizon, stars, objects of one sort or another). The "rays" involved are virtual (non-existent, imaginary, conceptual) rather than real. We also often measure angles between real physical objects, things other than the idealized set of infinitesimal points that make up a ray.