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hodyreva [135]
4 years ago
10

each exterior angle of a regular polygon measures 20 degrees. How many sides does the polygon have? ​

Mathematics
2 answers:
Nataly [62]4 years ago
6 0

Answer & Explanation:

Since the sum of the exterior angles of a polygon is 360° and an angle of the regular polygon is 20°, then 360° / 20° is the number of sides. Let the number of sides be n. n = 18, an octadecagon.

Aleks [24]4 years ago
5 0

Answer:

18 sides

Step-by-step explanation:

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Anit [1.1K]

Answer:

Yes

Step-by-step explanation:

This represents a linear function because as it increases one in  it always goes up 4.

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Which value of x would make this equation true? 4x-10=18
garik1379 [7]
1) move the 10 over to the other side which would give you 28.
2) divide by 4 to get x by itself.

ANSWER: 7
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What is the common ratio of the geometric sequence below?
Lilit [14]

Answer:

The correct answer is A -3.

Step-by-step explanation:

18/(-3)=-6

To get to -6 from 18 you need to divide by -3.

To get to 2 from -6 you will divide by -3.

5 0
3 years ago
Ann invested $61,000 into two accounts. The first account pays an annual interest rate of 5% and the second account pays an annu
sp2606 [1]

Answer:

2nd Account has $19,000

1st Account has $42,000

Step-by-step explanation:

First let's split the money invested.

x is money in account 1

y is money in account 2

1st equation

<u>$61,000=x+y</u>

5%=0.05

7%=0.07

2nd equation

<u>0.05*x+0.07*y=$3,430</u>

x=61,000-y

substitute into 2nd equation

0.05(61,000-y)+0.07y=3430

Solve.

3050-0.05y+0.07y=3430

0.02y=3430-3050

0.02y=380

y=380/0.02

y=$19,000

There are 2(two) ways to solve for the 1st account, but I will do it the long way.

y=61,000-x

substitute into 2nd equation

0.07(61,000-x)+0.05x=3430

Solve.

4270-0.07x+0.05x=3430

-0.02x=3430-4270

-0.02x=-840

x=-840/-0.02

x=$42,000

The short way...

x=61,000-y

x=61,000-19,000

x=$42,000

4 0
3 years ago
Solve the system of equations by graphing<br>3x+y=7<br>x+2y=4​
nignag [31]

9514 1404 393

Answer:

  (x, y) = (2, 1)

Step-by-step explanation:

The graph of these equations is attached. The solution is ...

  (x, y) = (2, 1)

5 0
3 years ago
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