1. Area of square = s*s
144=s*s
S=12 cm
2. Perimeter of a square=4*s
32=4s
S=32/4=8cm
Answer: 122 ft
<u>Step-by-step explanation:</u>
s = r Ф (Ф must be in radians)
Given: r = 50
Ф = 140°



The slope is 10
since it doesn't say anything after the 10x, the y-intercept is at (0, 0)
Answer: Multiply each equation by the value that makes the coefficients of opposite.
(−2) ⋅ (3x−15y) = (−2) (9) (-2) ⋅ (3x-15y) = (-2) (9) (3) ⋅ (2x−10y) = (3) (6)
Simplify.
–6x+30y= − 18
6x − 30y = 18
i hope this answers it