an image of a book shown on a website is 1.5 inches wide and 3 inches tall on a computer monitor. The actual book is 9 inches wi
3 answers:
Answer:
1 inches = 6 inches
Step-by-step explanation:
Given : an image of a book shown on a website is 1.5 inches wide and 3 inches tall on a computer monitor.
To Find :The actual book is 9 inches wide. What scale is being used?
Solution :
Width of image on website = 1.5 inches
The actual book is 9 inches wide
Since 1.5 inches = 9 inches
So, 1 inch = inches
So, Scale : 1 inches = 6 inches
Hence Scale used is 1 inches = 6 inches
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Answer:
Explanation:
Binomial expansion is:
Here in given expression we have a=x , b=-2y and n = 13
general formula for binomial expansion is:
Since,
r should be one number less than the term we need to find so it will become the number we need to find like here we have to find 9th term so, r=8
substituting the values in the genral formula we will get
After substituting the values we will get
After simplification we will get
which will be the 9th term of the expansion