The average of these numbers is nine tenths,

, or .9, however you would like to put it.
Answer:
3x-7y
Step-by-step explanation:
9x^2 - 49y^2
find the square root of a values
=3x-7y
L = -4,4
E = -2, -3
N = 2,1
I = 4,3
E = 1,3
Answer:
Step-by-step explanation:
because <u>c</u> is shorter than<u> a</u> we know C is a smaller angle than A
so the first choice is out.
use the law of cosines to find b
= 
=1681+400-1326.787871
= 754.21219
b= 
b= 27.46292
so the last choice looks good
Answer:
h/2
Step-by-step explanation: