The answer is: perpendicular because both have same y-intercept
<span>cos 4x + cos 2x = 2 - 2 sin^2 2x - 2 sin^2 x
cos 4x + cos 2x = 1 + 1 − 2sin^2(2x) − 2sin^2(x)
cos 4x + cos 2x = (1 - 2sin^2(2x)) + (1 - 2 sin^2(x)
cos 4x + cos 2x = cos 4x + cos 2x</span>
Answer:
$19.99
Step-by-step explanation:
1 lb = 16 oz
8.2 lb = (16 x 8) +2= 130
---> x = $0.154 per oz
0.154 x 130 = $19.99
B, because percent means per 100.
Answer:
144
Step-by-step explanation:
Area of 1 triangle: 20 in
Area of 4 triangles: 80 in
Area of the square: 64 in
Add the 4 triangles and the square.
