L=2.5*w, p=2l+2w. Plug in your known value for l, p=2(2.5w)+2w=5w+2w=7w. Now solve for w, p/7=(7w)/7=w. Plug in your perimeter, w=p/7=28/7=4. Plug in your width into your equation for length. l=2.5w=2.5(4)=10. Your length is 10 feet.
We were just leaving about this
Let x = width of deck needed
(2x + 20)(2x + 50) = 456
Solve for x to find your answer.
Answer:
It helps it stop spinning if fails then the helicopter can go in an uncontrollable spin.
=−640x10+1280x9+19904x8−40728x7−144488x6+323904x5−162304x4+1024x3+2048x2
step by step
(2x+8x2+3x−4x(x−4)(x−1)(20)x+4)(2)(x+4)(x−4)(2)x(x−1)(2)x(x+4)
=((2x+8x2+3x−4x(x−4)(x−1)(20)x+4)(2)(x+4)(x−4)(2)x(x−1)(2)x)(x+4)
=((2x+8x2+3x−4x(x−4)(x−1)(20)x+4)(2)(x+4)(x−4)(2)x(x−1)(2)x)(x)+((2x+8x2+3x−4x(x−4)(x−1)(20)x+4)(2)(x+4)(x−4)(2)x(x−1)(2)x)(4)
=−640x10+3840x9+4544x8−58904x7+91128x6−40608x5+128x4+512x3−2560x9+15360x8+18176x7−235616x6+364512x5−162432x4+512x3+2048x2
=−640x10+1280x9+19904x8−40728x7−144488x6+323904x5−162304x4+1024x3+2048x2