Answer:
A) 2341 square units
Step-by-step explanation:
Area of a regular polygon= 1/2*perimeter*apothem
Perimeter=22*8=176 units
Apothem=26.6 units
Thus:
A=1/2*176*26.6
A=88*26.6
A=2340.8
So the area of the regular octagon rounded to the nearest square unit is 2341 units^2, aka. Option A
Answer: 5.2412 = 5.2412 = 2x + 3y = −5 = 2x + 3y = -5 = 5x − y= -12
Those are all lines...
So the x interval is from -2 to 3, because of x=-2 and x=3
The upper line is y(u)=4x and the lower line is y(l)=x-5
So the area between the two lines is:
A=⌠y(u)-y(l) dx
A=⌠4x-x+5 dx
A=⌠3x+5 dx
A=[3x^2/2+5x]
A=[(3x^2+10x)/2], x=[-2,3]
A=(1/2)(27+30-(12-20))
A=(1/2)(57+8)
A=(1/2)(65)
A=32.5 u^2
So since 2/5 of the washing machines have been sold that means 3/5 remain in the store
first find the number of washing machines that were in the store before any were sold
X is the number of washing machines in the store before selling
18=(3/5)X
18/(3/5)=X
X=18*(5/3)
X=30
so at the beginning there were 30 machines
then multiply the percent sold (2/5) by the number at beginning to find the number sold
(2/5)*30=12
so 12 machines were sold
to find the cost per machine divide the total price by number of machines sold so
$3840/12= $320
so the answer is $320 per machine
4/5 of 40 = 32
1/3 of 3 = 1
1/3 of 15 muffins = 10 muffins
