Answer:
11.8cm²
Step-by-step explanation:
The area of the regular pentagon is expressed as;
A = pa/2
p is the perimeter of the pentagon
a is the apothem
Since p = 5s
s is the side length, hence;
A = 5sa/2
Get the side length s;
central angle = 360/5
central angle = 72degrees
angle in the right angle triangle =72/2 = 36degrees
Using SOH CAH TOA
sin 36 = x/2
x = 2sin36
x = 1.1755
s = 2x
s = 2.35cm
Get the area
A = 5(2.35)(2)/2
A = 5(2.35)
A = 11.8cm²
Hence the area of the regular pentagon is 11.8cm²
Break even = fixed cost / (sales - variable cost)
The fixed cost is the point cost and operating cost is the variable cost.
Break even = 284 / (299 - 43)
Break even = 1.1 units
Answer:
x=24
Step-by-step explanation:
10x + 60 = 300
10x=300-60
10x=240
x=24
Answer:
20
Step-by-step explanation:
31 ÷ 155% =
31 ÷ (155 ÷ 100) =
(100 × 31) ÷ 155 =
3,100 ÷ 155 =
20
Answer: approximately 7.07
Step-by-step explanation:
The distance formula is 
. Since we are given teo points, we can plug them in and solve.
[parenthesis]
[exponent]
[add]
[square root]
The distance is approximately 7.07.
