Answer:
(x+2)(2x+2) = 130
x=6.58m
Step-by-step explanation:
The shape of the whole figure is a triangle. Hence the area of the whole figure is expressed as:
Area = Length * Width
Given
Length = 2 + x + x = 2+2x
Width = 2 + x
Area = 130m²
Substitute the resultng values into the formula;
(2+2x)(2+x)= 130
(x+2)(2x+2) = 130
Expand the bracket:

Divide through by 2

Complete the square by adding the square of the half of the coefficient of x to both sides:


Take the square root of both sides

Hence the value of x is 6.58m
Answer:
168cm
Step-by-step explanation:
Length: 8cm
Width: 3cm
Height: 7cm
I divided 8 and 7 first and got 56.
Next I multiplied 56 and 3 and got 168.
So the length is 168cm
(Hope this helped! <3)
(sorrry if its wrong I feel stupid today)
Answer:
True
Step-by-step explanation:
This is true because space goes in all directions space does not stay in on lane
X = 1st number
x + 1 = 2nd number
x + 2 = 3rd number
x + (x + 1) + (x + 2) = 18...combine like terms
3x + 3 = 18
3x = 18 - 3
3x = 15
x = 5
x + 1 = 5 + 1 = 6
x + 2 = 5 + 2 = 7
7 + 6 + 5 = 18
13 + 5 = 18
18 = 18 (correct)
largest number is 7