Answer:
7x²-3x
Step-by-step explanation:
What is the are of the shaded region. The inner square is a width of x and a length of x+7. The outer square is a length of 4x and a width of 2x + 1.
Area of a square = Length * Length
Area of the inner square = x (x+7)
Area of the inner square = x²+7x
Area of the outer square = 4x(2x+1)
Area of the outer square = 8x²+4x
Area of the shaded region = Area of outer square - Area of inner square
Area of the shaded region = (8x²+4x)-(x²+7x)
Area of the shaded region = 8x²+4x-x²-7x
Area of the shaded region = 7x²-3x
This gives the area of the shaded region
Because the 2 lines are parallel, (5x+5) + 115 need to equal 180.
Solving for X:
5x+5 +115 = 180
5x + 120 = 180
Subtract 120 from each side:
5x = 60
Divide both sides by 5
x= 60/5
X = 12
Answer:47250
Step-by-step explanation:just multiply them
360 centimeters^2, the formula for SA is A=2(wl+hl+hw) so just input your numbers if you need work for this question.
Answer:
Step-by-step explanation:
common ratio is -3
10-3=7
7-3=4
4-3=1
etc