A triangular pyramid is formed from three right triangles as shown below. Use the information given in the figure to find the length LN.
If applicable, round your answer to the nearest whole number.
The lengths on the figure are not drawn accurately.
L
50
9
1
-
1
N
1
K
41
M

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm

Write the factored form of this trinomial 9x^2+18x-7