Answer:
It is
Step-by-step explanation:
Using Pythagoras 51^2 = 50^2 + b^2
b=10.0499
It is rational, since actually

so, the expression simply beco
Combination Formula: (n = distinct objects, r = how many you pick) n!/(r!(n-r)!
So n = 7, r = 5
n! = 7! = 5040
R! = 5! = 120
(n-r) = 2! = 2
120*2=240
5040/240 = 21
21 combinations!
Answer:
There are no solutions
Step-by-step explanation:
2(x+1)=2x+5
Distribute the values on the left:
2x+2=2x+5
subtract 2x from each side
2x(-2x)+2=2x(-2x)+5
2=5
These value are not equal so there are no solutions