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timofeeve [1]
4 years ago
10

If Gabby wants to make an octagon with a side length of 20 inches using a wire how much wire does she need

Mathematics
1 answer:
Dennis_Churaev [7]4 years ago
4 0
A octagon has 8 sides  and one side is = 20inches ,so 20*8 is  equal to 160  so all the sides together is 160 inches
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The diameter of a circle is 20 centimeters. ​ ​​What is the length of its radius?
kvv77 [185]

Answer:

10 centimeters would be your answer because radius is half of diameter.

6 0
4 years ago
Read 2 more answers
**PLEASE ANSWER LITERALLY EVERY TIME I TRY POSTING A QUESTION NO ONE EVER ANSWERS.**
dezoksy [38]

<em>Please note that I'm not 100% sure on this question!</em>

Answer:

x^{2} + 22x + 120

Step-by-step explanation:

The ball pit was originally 10 × 12 feet long, or a 120ft area.

We can express the areas of the side and bottom extensions as 12x and 10x respectively.

The corner adjacent to both extensions can be expressed as x^{2}.

We can put these numbers into a polynomial:

x^{2} + 12x + 10x + 120

This polynomial can then be simplified.

x^{2} + 22x + 120

7 0
3 years ago
Factored form of x^2+15x+56
svlad2 [7]

Answer:

(x + 8) • (x + 7)

Step-by-step explanation:

Step  1  :

Trying to factor by splitting the middle term

1.1     Factoring  x2+15x+56

The first term is,  x2  its coefficient is  1 .

The middle term is,  +15x  its coefficient is  15 .

The last term, "the constant", is  +56

Step-1 : Multiply the coefficient of the first term by the constant   1 • 56 = 56

Step-2 : Find two factors of  56  whose sum equals the coefficient of the middle term, which is   15 .

     -56    +    -1    =    -57

     -28    +    -2    =    -30

     -14    +    -4    =    -18

     -8    +    -7    =    -15

     -7    +    -8    =    -15

     -4    +    -14    =    -18

     -2    +    -28    =    -30

     -1    +    -56    =    -57

     1    +    56    =    57

     2    +    28    =    30

     4    +    14    =    18

     7    +    8    =    15    That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above,  7  and  8

                    x2 + 7x + 8x + 56

Step-4 : Add up the first 2 terms, pulling out like factors :

                   x • (x+7)

             Add up the last 2 terms, pulling out common factors :

                   8 • (x+7)

Step-5 : Add up the four terms of step 4 :

                   (x+8)  •  (x+7)

            Which is the desired factorization

Final result :

 (x + 8) • (x + 7)

Processing ends successfully

plz mark me as brainliest :)

6 0
3 years ago
This is not a graded question
Artyom0805 [142]

Answer:

It’s B

Step-by-step explanation:

8 0
3 years ago
What is 13 nickels combined with 6 dimes?
Setler [38]
125 = 6 dimes = 60 and 13 nickles = 65

60+65= 125

Hope i was the brainliest asnwer.
6 0
3 years ago
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