We know that
Applying the law of cosines
c²=a²+b²-2*a*b*cos
C------> cos C=[a²+b²-c²]/[2*a*b]
in this problem
a=7.6 in
b=8.6 in
c=7.4 in
C=angle V
cos C=[7.6²+8.6²-7.4²]/[2*7.6*8.6]----> 0.5887
C=arc cos (0.5887)--------> C=53.93°-------> C=53.9°
the answer is
angle V is 53.9°
Answer:

Step-by-step explanation:
Divide both sides by 9 to isolate x:

Hope this helps!
Answer:
the Lateral SA is 84
The total is 1092.
Step-by-step explanation:
Answer:
-7x - 18
Step-by-step explanation:
-4x - 10 - 3x - 8 = - 7x - 18