Answer:
d
Step-by-step explanation:
they are all subrtacting negatives which makes it like adding
Answer:
0.17.
Step-by-step explanation:
Answer:
C. no solutions
Step-by-step explanation:
Both equations have a slope of -2, but have different y-intercepts. Therefore, the graphs of the equations are parallel, but don't coincide, nor do they intersect. So, there are no solutions
Answer: (c), (a)
Step-by-step explanation:
Given
1. It is known that the amplitude of the wave is the distance between the maximum or minimum point from the centerline
from the graph,
is the line about which the distance of the maximum and minimum point is the same i.e.

option (c) is correct
2. For graph second maximum point is 4 and the minimum point is -1, the amplitude is

option (a) is correct
Answer:
l = 23 cm and w = 5.7 cm
Step-by-step explanation:
Perimeter = twice the length plus twice the width
let w = width
let l = length
l = 5.9 + 3w
57.4 = 2(5.9 + 3w) + 2w
57.4 = 11.8 + 6w + 2w
57.4 = 11.8 + 8w
45.6 = 8w
w = 5.7
Substitute 5.7 for 'w' to get 'l':
l = 5.9 + 3(5.7)
l = 23