Let l and w be the length and width of the rectangle. We know that 
The formula for the perimeter is 
Using our substitution, it becomes
We know that the perimeter is 34, so we have
The length is 4 less than twice the width, so we have
C= pi x 2r
C=pi x diameter
D=2r
Answer:
The number of sandwiches sold is 73. This is because it is multiplied by the expression for the money received per sandwich.
The cost to make each sandwich is <em>S. </em>This is stated in the first sentence of the problem.
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The profit is 0.2<em>S. </em>This is because they sell each sandwich for an additional 20% of the cost ( S )
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The amount of money the band receives is (<em>S </em>+ 0.2<em>S </em>). This is because it is the price per sandwich.
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Answer:
f(2) = -2
Step-by-step explanation:
plug in 2 to wherever x is in this statement:
f(2) = -2(2^2) - 2(2) + 10
f(2) = -2(4) - 4 + 10
f(2) = -8 - 4 + 10
f(2) = -2
All Triangles are equilateral ( each side = 4)
Area of a Triangle is (B x H)/2. B being the base ( 4) & H the altitude.
WE know that altitude in an equilateral triangle, H = ( side x√3)/2
So H= (4√3)/2 = 2√3
The area of one triangle = (4 x 2√3)/2 = 4√3
And for the 3 triangles the lateral area = (4√3) x 3 = 12√3
