Your answer would be A. 122° and 58° because both angles have to equal 180°
Answer: x - 3y = -2
x = -2 + 3y
x - 3y = 16
x = 16 + 3y
C it’s 366 cm that’s how you would know the rectangular board
Answer:
x^2= 36
Step-by-step explanation:
since x = 6
therefore, x^2 = 6×6=36
Cos² 2x = (1+cos 4x )/2
cos² 6x = (1+cos 12x)/2
subtract to get 1/2 (cos 4x - cos 12x )
= 1/2 (2 sin 4x sin 8x ) as cos A - cos B = 2 [ sin (A+B)/2 sin (A-B)/2 ]
so the answer
