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Alexeev081 [22]
3 years ago
11

I need the answer for 9

Mathematics
2 answers:
avanturin [10]3 years ago
7 0
Sum of Interior Angles = (n-2) × 180<span>°
so you can use this to find out how many sides of this polygon

</span> (n-2) × 180° = 1800
 n - 2 = 10
      n = 12

this polygon has 12 sides
tester [92]3 years ago
3 0
The sum of the measures of the angles of a polygon of n sides is 180(n - 2).

Set that expression equal to 1800 and solve for n, the number of sides.

180(n - 2) = 1800

Divide both sides by 180

n - 2 = 10

Add 2 to both sides

n = 12

The polygon has 10 sides.
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Given f(x) = 10 - 2x, find f(7).
Dmitry_Shevchenko [17]

Answer:

-4

Step-by-step explanation:

f(x) = 10 - 2x,

Let x= 7

f(7) = 10 2(7)

     = 10-14

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7 0
4 years ago
Joey has 5 collector stamps.He receives 3 more stamps each week that he completes community service hours.X=the number of weeks
kirza4 [7]

Answer:

Therefore the required equation is

Y=5+3X

Step-by-step explanation:

Given that , Joey has 5 collector stamps.

He gets 3 more stamps each week.

The number of week is X.

1st week he got 3 stamps

2nd week he got (3+3)=2.3 stamps

3rd week he got (3+3+3)=3.3 stamps

Stamp that he got=( the number of week ×3)

Therefore at end of Xth week he got =(X × 3) =3X stamps

Total number of stamps that collected after x week

=5+3X

Therefore the required equation is

Y=5+3X

6 0
4 years ago
Find the equation of the line in slope-intercept form. m=− 4 7 through (14, 3)
fomenos
I think your answer is y=-4/7x+5
7 0
4 years ago
A and b are odd numbers.
stepladder [879]

Answer:

2(3+7)=20 and 20 is a multiple of 4

Step-by-step explanation:

4 times 5 equals 20, which makes it a multiple of 4

3 and 7 are both odd, and added together get 10. Times that by 2 and you get 20

8 0
3 years ago
Read 2 more answers
Find the area of a square park whose perimeter is 400m​
PIT_PIT [208]

Answer: 1600m^2

Its a square so all sides are equal. So...

400m * 400m

= 1600m^2

8 0
2 years ago
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