Length = 20 ft
If he uses 60 ft of fencing to line his rectangular backyard, then the perimeter is 60 ft.
Perimeter formula is ((Width × 2) + (Length × 2))
10 × 2 = 20
20 × 2 = 40
40 + 20 = 60
Answer; c^2 = a^2 + b^2
c = 17 inches
a = 8 inches
b^2 = c^2 – a^2
b^2 = 17^2 – 8^2
b^2 = 289 – 64
b^2 = 225
b = square root of 225
b = 15 inches ≈ c.
To find the total cost multiply $12 x 180 square feet
Answer:
29 + 8x
Step-by-step explanation:
5 + 8(3 + x) by PEDMAS parentheses first
= 5 + 3(8) + x(8)
= 5 + 24 + 8x
= 29 + 8x