Given:
Results of a spinner shown in the table.
To find:
The experimental probability of the spinner landing on a 1 or 7.
Solution:
From the given table it is clear that,
Spinner landing on 1 = 12 times
Spinner landing on 7 = 9 times
Spinner landing on 1 or 7 = 12+9 = 21 times
Total number of times spinner landed = 12+35+72+29+40+18+9+65+42 = 322 times
Now, the experimental probability of the spinner landing on a 1 or 7 is

Therefore, the correct option is A.
Answer:
The vertex form of the function is
.
Step-by-step explanation:
The given function is

The vertex form is

Rewrite the given function


Add and Subtract
.

Use 

Therefore the vertex form of the function is
.
Answer:
The triangles pictured are similar (SSS), that is the corresponding sides are in the same ratio. Hence the matching angles are the same. For any right-angled triangle similar to triangle ABC, the ratio of the matching sides will be the same.
The GCF of <span>8x and 22xy is 2x</span>
Example :
20 + 30.....GCF = 10
10(2 + 3)
The GCF of the number now is 1....because u have basically already factored the GCF out.....leaving only 1 as a factor now
here's another one...
3 + 9...GCF = 3
3(1 + 3)
so the GCF now is 1