Answer:
the correct answer would be I think 5x-15y=1
Step-by-step explanation:
I have already learned that
I'm thinking its a im not sure though since i just finished getting out of that unit
Answer:
A 28 because 7 times four
Step-by-step explanation:
Begin by using the cosine rule to find the unknown side.
Where a- unknown side, b is 12, c is 16 and angle in between is 108°
The cosine rule...
a² = b² + c² - 2bc cosA
= 12² + 16² - (2×12×16 cos108°)
= 518.655076
Taking the positive
square root...
a = 22.774
a = 22.8 cm nearest tenth