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Flura [38]
3 years ago
7

How many sides does a polygon have if the sum of the interior angles is 3420

Mathematics
2 answers:
ladessa [460]3 years ago
7 0

Answer:

i dont know

Step-by-step explanation:

yup

Dennis_Churaev [7]3 years ago
5 0

Answer: 21 sides

Step-by-step explanation: (n-2)=3420  you should divide each side by 180

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I need help solving this problem please I would like short explanations please its more helpful for me. :) ​
Allisa [31]

Answer:

First point goes on -2

Step-by-step explanation:

3 0
2 years ago
Suppose that 24 inches of wire costs 96 cents.
Alexxx [7]
At the same rate, 31 inches of wire will cost 124 cents.

3 0
2 years ago
Solve: -4 < -2x < 10
Minchanka [31]
<h3>Answer:   -5 < x < 2</h3>

Explanation:

The expression -2x means -2 times x. To undo this, we divide all parts of the inequality by -2. Dividing by a negative number will flip the inequality sign. We go from "less than" to "greater than"

-4 < -2x < 10

-4/(-2) > x > 10/(-2) .... inequality signs flip

2 > x > -5

-5 < x < 2

This unknown number x is between -5 and 2. It cannot equal -5. It cannot equal 2.

8 0
3 years ago
The length of a rectangle is represented by the polynomial 2x3 – 5x2 + 8 and the width is represented
Rom4ik [11]

1) the polynomial representing the area is

2x^4 + 6x^3 - 5x^2 -7x + 24

2) the constant term is

24

3) the polynomial is a 4th degree

4) if my guess is ryt... the LEADING coefficient is the coefficient of the highest degree of X ...i.e 2

8 0
3 years ago
Read 2 more answers
Which equation represents the line that passes through the points (2,7) and (1,5)
Dimas [21]

Answer:

First we get the slope of line with points (2,3) & (1,5):

m=%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29

m=%285-3%29%2F%281-2%29=2%2F%28-1%29

m=-2, slope

Knowing the slop, we can get the intercept in point (1,1):

y=mx%2Bb, SLOPE- INTERCEPT

1=-2%281%29%2Bb

b=1%2B2=3

so, the eqn of the line: highlight%28y=-2x%2B3%29

The line with points (2,3) & (1,5): same slope because parallel, we'll check

 

VIA POINT SLOPE FORM:

m=%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29

m=%285-3%29%2F%281-2%29=2%2F-1 ----> m=-2, same right?

For the intercept thru pints (2,3):

Via SLOPE INTERCEPT FORM, we pick points (2,3)

3=-2%282%29%2Bb

b=3%2B4=7 ----> y intercept. The same value if you pick points (1,5).

Eqn of line: y=-2x%2B7 (Green line) parallel to y=-2x%2B3 (Red line)

See the graph,

--- see red line, it passes at point (1,1). Also green line passes points (2,3) & (1,5)

Step-by-step explanation:

5 0
2 years ago
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