Your answer will be D and E
The approximate length of rail that needs to be replaced is 7.1 ft
<h3>Length of arc</h3>
Since the pool is circular, the approximate length that needs to be replaced is an arc of length, L = Ф/360° × πD where
- Ф = central angle of rail section = 27° and
- D = diameter of circular pool = 30 ft
<h3>Approximate length of rail</h3>
So, substituting the values of the variables into the equation, we have
L = Ф/360° × πD
L = 27°/360° × π × 30 ft
L = 3/40 × π × 30 ft
L = 3/4 × π × 3 ft
L = 9/4 × π ft
L = 2.25 × π ft
L = 7.07 ft
L ≅ 7.1 ft
So, the approximate length of rail that needs to be replaced is 7.1 ft
Learn more about length of an arc here:
brainly.com/question/8402454
Answer:
Find the length of the hose = 5.2 feet
Step-by-step explanation:
The garden is divided into two similar triangle.
The hose divided one side of the triangle to two equal parts.
Side a = 6ft
Side b = 3ft
Side c = ? (length of hose)
a² = b² + c²
6² = 3² + c²
36 = 9 + c²
27 = c²
√27 = c
5.196 = c
Answer:
Step-by-step explanation:
It’s a cube with edge length of 12 cm.
The cube has six faces, and the are ma if each face is 144 cm²
Total surface area = 6×144 = 864 cm²
Answer:
45
Step-by-step explanation:
first we need to make an equation so we can plug in 5hours
lets make x=hours
she makes 9$ per hour so
9x
input the amount of hours they want, 5
so 9(5)
45
