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ruslelena [56]
3 years ago
9

F 9 H 10 7 G P y R 3.5 Q

Mathematics
1 answer:
sveta [45]3 years ago
4 0

Answer:

R 3.5

Step-by-step explanation:

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Using x as the variable, write a formula to find the perimeter of the figure. Use the formula to find the perimeter. a regular d
Mamont248 [21]

Answer:

c. 12x; 111 cm

Step-by-step explanation:

The regular dodecagon has 12 sides. Each side has a length of x=9.25 cm, and we know that the perimeter of the figure is the sum of the lengths of all the sides: Therefore, since we have 12 sides, the perimeter will be given by the product between the length of each side, x, and the number of sides, 12:

p=12 \cdot x

and if we substitute x = 9.25 cm, we find

p=12 \cdot 9.25 cm=111 cm

6 0
3 years ago
The diagonals of a rhombus are 21 m and 32 m. What is the area of the rhombus?<br> 30 POINTS
Wittaler [7]
I have included attachment below

so since a rhombus is 2 pairs of paralell sides, we can cut it into 4 triangles
we can see that we can take the bottom 2 triangles and put them on top to get a rectangle that is width 21 and height 32/2 (16=height
area of rectangle=legnth times width=16 times 21=336 m^2

answer is 336 m^2

5 0
3 years ago
Lena took a test with 20 questions. She lost 5 points for each of the 12 questions she got incorrect, however, gained 20 points
Makovka662 [10]

Answer:

17

Step-by-step explanation:

6 0
3 years ago
Order?<br> 2x^2 - 4x + x^6+ 8 + 3x^10
polet [3.4K]

Answer:

3x^10 + x^6 + 2x^2 - 4x + 8

Step-by-step explanation:

In descending order by powers of x:  3x^10 + x^6 + 2x^2 - 4x + 8

3 0
3 years ago
-7p = -3p - 8<br> p =<br> Help
jeka94

Answer:

p=2

Step-by-step explanation:

-7p = -3p - 8

Add 3p to each side

-7p+3p = -3p+3p - 8

-4p = -8

Divide each side by -4

-4p/-4 = -8/-4

p = 2

6 0
3 years ago
Read 2 more answers
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