10) a. 130
Step-by-step explanation:
Answer:
5sqrt3
Using the pythagorean theorem, we have a^2+4^2=9^2
a^2 + 16 = 81
a^2 = 75.
a = sqrt75.
75 = 25*3. 25 is a perfect square, so sqrt75 = 5sqrt3
C
the answer for this question is
-2 and 6
where is the questions??
Answer: W=20 and L=55
2(3w-5)+2(w)=150
6w-10+2w=150
8w-10=150
8w=160
W=20
L= 3(20)-5
=60-5
=55
