Formula for combinations:
(n!)/(r!(n-r)!)
For you, this is:
10!/(5!(10-5)!) = 10!/5!5! = (10•9•8•7•6•5•4•3•2)/(5•4•3•2)(5•4•3•2) = (10•9•8•7•6)/(5•4•3•2) = 30240/120=252 different ways.
Bh/2
7(5)/2
35/2
17.5 is the final answer but with units... Area=17.5ft²
Answer:
u equals 3.43 because you subtract from both sides.
4(8 - x) = 8, 32 - 4x = 8, -4x = -24, So x = 6
