Answer:
x = -5/7
Step-by-step explanation:
8 1
---------- = ----------
x+3 x+1
Using cross products
8 (x+1) = 1 (x+3)
Distribute
8x+8 = x+3
Subtract x from each side
8x-x +8 = x-x+3
7x+8 =3
Subtract 8 from each side
7x +8-8 =3-8
7x = -5
Divide each side by 7
7x/7 = -5/7
x = -5/7
Fo sides, a,b,c
where c is the longest
c<a+b
or else you won't have a triangle
we want the longest side
this mystery side is c
other ones are a and b
c<6+8
c<14
the next largest whole number is 13
answer is 13 inches
The standard error of the mean is the standard deviation which is 6.50
