Answer:
56 - 28d
Step-by-step explanation:
1) First, combine the like terms within the parentheses. So, add 2 and 6 together:
2) Then, use the distributive property to simplify further. To use the distributive property, you need to multiply all the terms within a set of parentheses by the number that needs to be multiplied next to it. So, in this case, multiply both 8 and -4d by 7:
Since we cannot simplify further or combine like terms, 56 - 28d is the simplified expression.
Answer:
Step-by-step explanation:
Look at the picture.
We have two triangles and the trapezoid.
The formula of an area of a triangle:
b - base
h - height
The formula of an area of a trapezoid:
b₁, b₂ - bases
h - height
Triangle 1:
b = 3, h = 2
Triangle 2:
b = 6, h = 1
Trapezoid:
b₁ = 7, b₂ = 9, h = 6
The area of the figure:
