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mestny [16]
3 years ago
14

What is the sum of the measures of the interior angles of this polygon?

Mathematics
1 answer:
natita [175]3 years ago
5 0

Answer: 540

Step-by-step explanation:

A pentagon has a 3 diagonals so you multiply 180 by 3 which equals 540

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A farmer wants to fence a rectangular area of 72 square feet next to a river. Find the length and width of the rectangle which u
Arlecino [84]

Answer:

  • 12 ft parallel to the river
  • 6 ft perpendicular to the river

Step-by-step explanation:

The least fence is used when half the total fence is parallel to the river. That is, the shape of the rectangle is twice as long as it is wide.

72 = W(2W)

36 = W²

6 = W . . . . . . the width perpendicular to the river

12 = 2W . . . .  the length parallel to the river

_____

<em>Development of this relation</em>

Let T represent the total length of the fence for some area A. Then if x is the length along the river, the width is y=(T-x)/2, and the area is ...

  A = xy = x(T -x)/2

Note that the equation for area is that of a parabola with zeros at x=0 and at x=T. That is, for some fence length T, the area will be a maximum at the vertex of this parabola. That vertex is located halfway between the zeros, at ...

 x = (0 +T)/2 = T/2

The corresponding area width (y) is ...

  y = (T -T/2)/2 = T/4

Equivalently, the fence length T will be a minimum for some area A when x=T/2 and y=T/4. This is the result we used above.

8 0
3 years ago
What is the answer for this? Please help... T[-4,5] (P) : (-2,1).
elena55 [62]

Answer:

I don't know hehehaha

Step-by-step explanation:

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8 0
3 years ago
A baker’s dozen (13) of cookies is on sale for $4.94. How much does each cookie cost?
Natalija [7]

Answer: $0.38

Worded explanation:

4.94 divided by 13 equals 0.38, making your answer $0.38

Unworded explanation:

4.94/13 = 0.38

$0.38

7 0
1 year ago
Read 2 more answers
The city is planning to add a fish pound to a neighborhood park. the figure below is a scale drawing of the fish pound. its scal
CaHeK987 [17]

Answer: Sorry if it's wrong I hope I helped you

5 0
2 years ago
Rename 28 percent as a decimal and fraction in its simplest form.
VARVARA [1.3K]
28% is 28/100 as a fraction but the simplest form is 14/50 and it can be simplified to 7/25. the decimal is 0.28

fraction is 7/25
decimal is 0.28

7 0
3 years ago
Read 2 more answers
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