Answer:
for the first card selected, just multiply the number of cards of that kind over the total amount (30) by the new number of cards of that kind over the new total amount (29)
sample space is 10+6+9+5=30
7. 10/30*9/29=0.103
8. 6/30*5/29
9. 9/30*6/29
10. 5/30*9/29
11. 21/30*20/29
12. 19/30*18/29
If these two triangles are similar, the ratio of the side length 5 to the side length 8 should be the same as the side length x to the side length 10. In other words, x=6.25. Hope this helped!
Answer:
3.2 ft
Step-by-step explanation:
The initial distance from the base of the ladder to the wall is:
After moving the ladder, the distance from the base to the wall is 12 - 2x while the height of the ladder is 16 + x. The distance x is given by:
Therefore, the top of the ladder is 3.2 ft higher now.
It would be option B. the scale factor is 2:1