Answer:
10.5
Step-by-step explanation:
You can use ratios to solve this problem.
The original dimensions of the photo is
5 in. by 7 in.
This can be written as:
5:7
And the next is 7.5:?
Then you can use ratios to solve this.
5:7=
7.5:?
5*1.5=7.5 so you can multiply the other side by the same thing. 7*1.5=10.5
The width is 10.5 inches.
The experimental probability is 9/20 or 45%. Hope this helps!
1) 22.5
2) 16
Hope it helps sorry I cant do all of them
Answer:

Step-by-step explanation:
Denote first four terms of the geometrc sequence as

Note that

Then the common ratio is

Therefore, the recursive formula for the geometric sequence is
