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Ilya [14]
3 years ago
5

ABCDEFGHI is a regular 9-sided polygon.

Mathematics
1 answer:
Igoryamba3 years ago
6 0

Answer:

angle BEF = 100 degrees

Step-by-step explanation:

For a regular 9-sided polygon (nonagon),

each exterior angle = 360/9=40 degrees

each interior angle = 180-40 = 140 degrees.

Referring to diagram, in the trapezoid (trapezium) BCDE, the base angles are 180-140 = 40 degrees.

Therefore angle DEB = 40 degrees

that leaves BEF = 140-40 = 100 degrees

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What is 7 x 10^22 in its expanded form?
sammy [17]

Answer:

70,000,000,000,000,000,000,000

Step-by-step explanation:

3 0
3 years ago
use a system of linear equations with two variables and two equations to solve. a number is 11 more than another number. twice t
Eva8 [605]

The value of required two numbers x and y are 7 and -4 respectively. These values are find out using Elimination method.

Let the required first number and second numbers be x and y respectively .

We have given that, one Number is more than other by 11

i.e., the difference of two numbers is equal to 11

x - y = 11. …..(1)

And twice the sum of the two numbers is 6 i.e.,

2(x + y) = 6 => 2x + 2y = 6 => x +y = 3 …….(2)

Now , equation (1) and (2) are linear equation with two variables x and y .

We shall solve above two equations and find out the value of two variables. Using Elimination method , In which value of one variable is find out by eliminate the second variable through their coefficient comparison.

Added the equation ( 1) and (2) we get, 2x = 14 => x = 7

Put the value of x in equation (1) we get,

7 – y = 11 => y = -4

Thus, we get the values of two variables x and y is 7 and -4 respectively.

To learn more about linear equation, refer:

brainly.com/question/21243732

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7 0
7 months ago
Russell's monthly net income is $2397.his housing budget for the month is $685 .housing is what percentage of his monthly net in
Rus_ich [418]
If $2397 is 100%
and $685 is unknown 

685x100=68500
68500/2397=28.5774


round to 29%

6 0
2 years ago
What is 14/49 as a decimal
victus00 [196]
.285714286 All you have to do is divide them
4 0
2 years ago
Read 2 more answers
Please help me.
Svetllana [295]

Answer:

jdjdjdjd

Step-by-step explanation:

9999999

4 0
2 years ago
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