Answer:
7.7
Step-by-step explanation:
a ^2+b^2=c^2−2bccosA
l^2 = 5.9^2+7.1^2-2(5.9)(7.1)cos 72
The answer is .07 to this question
Answer:
18
Step-by-step explanation:
hope this helps! :D
have a miraculous day!! <3
Answer: x = -9, x = 115
Step-by-step explanation:
when x = -9 :
5(-9) + 40
-45 + 40
= -5
when x = 15
5(15) + 40
75 + 40
= 115