8.2 is the correct answer
Answer:
Step-by-step explanation:
1) (y - 1)²
1. y*y =y²
2. 2(y)(-1)= -2y
3 . (1)(1) = 1
(y-1)² = y² - 2y + 1
2) (6y + 3)²
1. (6y)(6y) = 36y²
2. (2)(6y)(3)=36y
3. (3)(3) = 9
(6y + 3)² = 36y² + 36y + 9
3) (4x - y)²
1. (4x)(4x) = 16x²
2. (2)(4x)(-y) = -8xy
3. (y)(y) = y²
(4x -y)² = 16x² - 8xy + y²
4) (y - 12)²
1.(y)(y) = y²
2. (2)(y)(-12) = -24y
3. (12)(12) = 144
(y - 12)² = y² - 24y + 144
6) (ab +c)²
1.(ab)(ab) = a²b²
2. (2)(ab)(c)=2abc
3. (c)(c)=c²
(ab+c)² = a²b² + 2abc + c²
The amount of plastic wrap needed is gotten by finding the area of the triangle, multiplying it by two, and adding it to 72.9 cm²,
<h3>
Area</h3>
Area is the amount of space occupied by a three dimensional object.
To calculate the amount of plastic wrap needed to wrap the triangular prism. We add the area of all the surface of the triangular prism
Amount of plastic = (2 * area of triangle) + (3 * 5) + (3 * 10.3) + (3 * 9)
Amount of plastic = (2 * area of triangle) + 72.9 cm²
The amount of plastic wrap needed is gotten by finding the area of the triangle, multiplying it by two, and adding it to 72.9 cm²,
Find out more on area at: brainly.com/question/25689052
Answer:
Step-by-step explanation:
A linear equation looks like any other equation. It is made up of two expressions set equal to each other. A linear equation is special because: It has one or two variables. No variable in a linear equation is raised to a power greater than 1 or used as the denominator of a fraction
The division symbol, or /