She needs 15 cans of varnish
Answer:
27 vertical posts and 36 horizontal rails
Step-by-step explanation:
If Max builds 1style of fence with each section having 3vertical posts and 6horizontal rails, to calculate the number of posts and rails that he need for a fence that will be 9 sections long, we will use the following equality;
For Posts:
1section = 3 vertical posts
9 sections = x
Cross multiply
x × 1 = 9× 3
x = 27
Hence Max will need 27vertical posts for a fence that is 9sections long
For the rail:
1 section = 6 horizontal rails
6 sections = y
Cross multiply
y× 1 = 6 × 6
y = 36
Hence Max will need 36 horizontal rails for a fence that is 9sections long.
In total Max will need 27 vertical posts and 36 horizontal rails for a fence that is 9sections long
Slope is defined as the change in y divided by the change in x. We note that for x=0, the value of y is 8.000 and for x=2.000, the value of y is 4.000. So, for a change of 2.000 in x (The change in x is sometimes referred to as "RUN") we get a change of 4.000 - 8.000 = -4.000 in y. (The change in y is sometimes referred to as "RISE" and the Slope is m = RISE / RUN)
<span> Slope = -4.000/2.000 = -2.000</span>
The answer is (x+1)²= x²+2x+1
so x^2 + 2x must be added 1 to become x²+2x+1=<span>(x+1)²</span>
