P(5,2) = n! /(n-r)!
n = 5, r = 2:
= (5 x 4 x 3 x 2 x 1 ) / 3 x 2 x 1
Cancel out common factors:
= 5 x 4 = 20
The answer is 20.
Answer:
96 degrees
Step-by-step explanation:
a
Can't see the whole problem
Length of both legs are 5, the hypotenuse is 5sqrt(2) for an explanation, look up a 45 45 90 special right triangle on google
Answer: x=27
Step-by-step explanation:
The degrees of any triangle are equal to 180
83+43= 126 so 126 degrees out of 180 are accounted for
180-126=54 this is what is left over to equal 2x
54/2=27 divide 54 in half, to get 27, (27x2=54)
