The solution is solved as the following:
10 + 10(2a - 4) + (8a - 6)
10 + (10 * 2)a + (10 * -4) + 8a - 6
10 + 20a -40 + 8a -6
28a - 36
The y values need to be on the top so it would be -2-8 over -4-3 so the answer would be 10/7
Answer:
The surface area of the net shown is: 88 
Step-by-step explanation:
Break up the different shapes in the net:
Let's take the big square first:
It has a side of 5in and a base of 4in.
We multiply both these values to get 20
Lets look at the small rectangular box now:
It has a side of 3in and a base of 4in.
We multiply both these values to get 12
There are two big squares so we add up their surface areas:
20
+ 20
= 40
There are 4 small rectangular squares so we add up their surface areas:
12
+ 12
+ 12
+ 12
= 48
Now we add up the big square and small rectangular squares values:
40
+ 48
= 88
Therefore the answer is 88
Answer: D
Step-by-step explanation:
Look at the exponents first and order them from least to greatest
Step-by-step explanation:
(2 cos(2x)) / (cot x – tan x)
Multiply top and bottom by sin x cos x:
(2 cos(2x) sin x cos x) / (cos² x – sin² x)
Use double angle formula:
(2 cos(2x) sin x cos x) / (cos(2x))
2 sin x cos x
Use double angle formula:
sin(2x)