Dilation involves changing the size of a shape.
The scale factor of dilation is 2
<h3>How to determine the scale factor</h3>
From the figure, we have the following highlights
- Both pentagons are regular polygons
- The side lengths of the second polygon are twice the side lengths of the first
The second highlight above means that:
The scale factor of dilation is 2
Read more about dilation at:
brainly.com/question/3457976
We have been given that the number of books in a small library increases according to the function 
, where t is measured in years. We are asked to find the number books in the library after nine years.
To find the number books in the library after nine years, we will substitute 
in our given equation as:
Upon rounding to nearest whole number, we will get:
Therefore, there will be approximately 6465 books in the library after 9 years.
Answer:
(-84) and (-83).
Step-by-step explanation:
1) according to the condition 'two conscutive integers' means x and x+1;
2) according to the condition x+(x+1)=-167;
3) if to solve this equation, then
x= -84, it means the required integers are: (-84) and (-83).
J = jeans
T = t-shirts
You: 5j + 10t = 140
Friend: 3j + 5t = 79
To use elimination in this problem, multiply the second equation by -2 so that 10t and 5t can cancel out:
5j + 10t = 140
-6j - 10t = -158
We are left with -j = -18 or j = 18
Substitute 18 into any equation. I'll use the first equation:
5(18) + 10t = 140
90 + 10t = 140
10t = 50
t = 5
