Answer:
x=5
Step-by-step explanation:
7x - 4y = 23 and x + y = 8
Multiply the second equation by 4
4x + 4y = 32
Add this to the first equation
7x - 4y = 23
4x + 4y = 32
------------------------
11x = 55
Divide each side by 11
11x/11 = 55/11
x = 5
Answer:
Parte1 :
∡B= 180 - (42 + 83)= 55°
Parte2 :
Using the law of sines : ⇔ ⇔ a= 142.95
Parte3 :
Using the same law : or ⇔ c= 212.04
Answer:
here u go
Step-by-step explanation:
88%
Answer:
4,3
Step-by-step explanation: