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STALIN [3.7K]
3 years ago
11

The Pentagon building in Washington, DC is the military headquarters of the United States. Why is this building called the Penta

gon? Among the redwoods in California, there’s a rustic inn and restaurant called The Hexagon House. From the name of the inn, how many walls can you assume the main building of the inn has? Jill bought a basket to fill with potpourri. The basket has eight sides. What shape is it? Write the correct name for each of the following polygons. a. A Shape b. A Shape c. A Shape d. A Shape Find the perimeter of each of the regular polygons described below. a. A square with sides measuring 6 centimeters b. An equilateral triangle with sides measuring 7 inches c. A regular heptagon with sides measuring 4 feet d. A regular nonagon with sides measuring 9 inches. Find the perimeter of each of the following polygons. Polygons Shelly is hanging strings of holiday lights around the front windows of her house. Each window is a square with sides measuring 5 feet in length. She has a total of 80 feet of light strings. How many windows will she be able to decorate? Use equations to find the length of the missing sides in each of the following polygons. a. A Shape b. A Shape c. A Shape d. A Shape
Mathematics
1 answer:
Yakvenalex [24]3 years ago
7 0

Answer:

1. It has 5 sides.

2. It has 6 walls.

3. Octagon

4. a. Pentagon (The figure has 5 sides.) b. Triangle (The figure has 3 sides.) c. Hexagon (The figure has 6 sides.) d. Hexagon (The figure has 6 sides.)

5. a. 6 cm + 6 cm + 6 cm + 6 cm = 24 cm, or 4 × 6 cm = 24 cm, b. 7 in. + 7 in. + 7 in. = 21 in., or 3 × 7, in. = 21 in., c. 4 ft. + 4 ft. + 4 ft. + 4 ft. + 4 ft. + 4 ft. + 4 ft. = 28 ft., or 7 × 4 ft. = 28 ft., d. 9 in. + 9 in. + 9 in. + 9 in. + 9 in. + 9 in. + 9 in. + 9 in. + 9 in. = 81 in., or 9 × 9 in. = 81 in.

6. a. 4 ft. + 3 ft. + 3 ft. + 2 ft. + 4 ft. + 5 ft. = 21 ft. b. 8 in. + 8 in. + 8 in. + 8 in. + 3 in. + 3 in. + 3 in. + 3in. = 44 in. c. 3 cm + 3 cm + 3 cm + 2 cm + 2 cm = 13 cm

7. Shelly has enough lights to decorate four windows.

8. a. 8 ft, b. 4 m, c. 24 ft, d. 7 cm

Step-by-step explanation:

PennFoster

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Sum of two digit number is9.When we interchange the digits it is found that the resulting new number becomes twice the other num
ruslelena [56]

Answer:

4 and 5

Step-by-step explanation:

Let the numbers be x and y

If their sum is 9, hence;

x + y = 9 ....1

When reversed

10y+x = 2(10x+y)

10y+x = 20x + 2y

10y - 2y = 20x - x

8y = 19x

y = 10x/8 ...2

Substitute equation 2 into 1;

From 1;

x+y = 9

x +(10x/8) = 9

18x/8 = 9

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x = 72/18

x = 4

Since x+y =9

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8 0
3 years ago
5x minus 6 equal 44?
Lisa [10]

Answer:

x = 10

Step-by-step explanation:

I'm not entirely sure what you're asking, however we know that:

5x-6=44

5x must be 50, as 50-6=44

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6 0
3 years ago
Read 2 more answers
If (-1, y) lies on the graph of y=2^2x then y=
zubka84 [21]

Answer:

y is 1/4 when x is -1 if I did interpret your equation right. Please see that I did.

I believe the equation to be y=2^{2x}.  If you meant y=2^2x, please let me know.

Thanks kindly.

Step-by-step explanation:

If (-1,y) lies on the graph of y=2^{2x}, then by substitution we have:

y=2^{2\cdot -1}.  

We just need to simplify to determine y:

y=2^{2 \cdot -1}  

Multiply the 2 and -1:

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Use reciprocal rule for exponents to get rid of the negative:

y=\frac{1}{2^2}

2^2 just means 2(2):

y=\frac{1}{2(2)}

y=\frac{1}{4}.

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Answer:

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Step-by-step explanation:

(1/4) (1/4)

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