Answer:
c
Step-by-step explanation:
252 = 7 *36
36 = 6 *6 = 6²
a² -b² = (a + b)(a - b)
7h² - 252k² = 7(h² - 36k²)
= 7(h² - [6k]² )
= 7(h +6k)(h - 6k)
La of sine:
sinC/c = sinB/b==> sin 37°/8 = sin B/12 ==> sin B = 0.903
arcsinB or sin⁻¹ B = 64.5°, & sin (B°) = sin (180° - B°), then
sin(64.5) = sin(180°-64.5°) ==> B = 64.5° or 115.5°
20% off means you paid only 80% of the original price.
0.8x=40
x=40÷0.8=50
so the original price is 50
The area the goat can graze is 1/2π(50)²= 1250π sq. feet
The rope length is 50 feet again, thus the results are the same.
1/2π(50)²= 1250π sq. feet
