Answer:
5 triangles are in a heptagon.
9625-807=8818
So, you would place a - in between 9625 and 807<span />
Here is your answer
Let the widht of rectangle be x metres
Then, its length= x+2 metres
Perimeter= 2 (l+b)
=> 34 = 2 (x+2 + x)
=> 34/2 = 2x+2
=> 17= 2x+2
=> 2x= 17-2
=> x = 15/2 metres
Width= 15/2 metres
Length= 15/2 + 2
= 19/2 metres
HOPE IT IS USEFUL
Answer:
a² + 16a - 612 = 0
Step-by-step explanation:
Here is the complete question :
The width of an extra large rectangle poster is 8 inches more than half its length. The area of this poster is 306 square inches
Write an equation in one variable that could be used to find the number of inches in the dimensions of this poster.
Area of a rectangle = length x width
Let length = a
width = 8 + 1/2a
Area = (8 + 1/2a) x a
306 = (8 + 1/2a) x a
multiply both sides of the equation by 2
612 = 16a + a²
a² + 16a - 612 = 0
the dimensions of the poster can be determined using quadratic formula
Answer: w would equal -20