Answer:
Step-by-step explanation:
An isosceles ∆ has 2 equal sides. The perimeter of a ∆ is the sum of all its sides.
Given that the perimeter of the triangle above is "at least 137 ft", this means the sum of all its sides is equal to or greater than 137 ft.
Thus, using inequality, this can be represented as:
Solve for x
Add like terms
Subtract 17 from both sides
Divide both sides by 8
Answer: 4
Step-by-step explanation:
The perimeter of an object is given by the sum of all the sides of the object. Thus the perimeter of a quadrilateral is the sum of the four sides of the quadrilateral.
Given a quadrilateral with sides: n, 2n - 12, 3n + 4, n + 7
The sum is n + 2n - 12 + 3n + 4 + n + 7 = 7n - 1 = 90
Thus, 7n = 90 + 1 = 91 and n = 91 / 7 = 13.
Therefore, the length of the side KL is n = 13 centimeters.
Answer:
Step-by-step explanation:
=x+−+−x+−x^{2}
Combine Like Terms:
=x+−x^{2} +−x+−x^{2}
=(−x^{2} +−x^{2} )+(x+−x)
Your answer should be 57 .7 I think its right