MATHEMATICS MIDDLE SCHOOL

The sum of the measure of the interior angles of a polygon is 1980°. What polygon is it? 10-gon 11-gon 12-gon 13-gon

Answers

Answer 1
Answer:

Answer:

13-gon

Step-by-step explanation:

The sum of the interior angles of a polygon with n sides is:

S = 180° (n − 2)

If S = 1980°, then:

1980° = 180° (n − 2)

11 = n − 2

n = 13
Answer 2
Answer:

Answer:13

Step-by-step explanation:

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What is -4.06 written as a fraction in simplest form

Answers

- 406 / 100 = 203/50 = - 4 3/50
-203/50 is what I got. 

An artis creates an abstract sculpture that appears as a box perched on top of a post the box is in the shape of a cube with edges measuring 5 inches each it is placed on top of a post in the shape of a rectangular prism with a length of 3 inches a width of 4 inches and a height of 18 inches what is the volume of the entire sculpture?

Answers

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R/12=1 9/10 A.22 4/5 B.12 9/10 C.10 4/5 D.19/120

Answers

The correct answer is Bmultiply both sides by 12 to get the answer:R = 12

What is the simplified form of the quantity of x plus 9, all over the quantity of 8 − the quantity of x plus 3, all over the quantity of x plus 2?

Answers

Is this the problem? 
(x+9)
(8 - x + 3)  ÷            X+2

Answer: (x^2 +3x-6)/(8(x+2))

Step-by-step explanation:

Danny charges $35 for three hours of swimming lessons mart charges $24 for two hours of swimming lessons who offers a better deal

Answers

Matt offers the better deal. He is exactly $1 dollar cheaper then Danny. In other to find this out i had to find what Matt charged per hour, so i took 24 divide 2 and got 12. So i learned that he charges 12 an hour. Then i added 12 to 24 to make 3 hours of lessons to match what Danny offers. It was $34 which makes it Matt's deal cheaper by $1.
Danny. Danny offers lessons for about $11/hr while mart charges $12

An American football team is on their own 35-yard line they lose 5 yards on each of the next three plays at what yard are they now

Answers

If they lose 5 yards on each of the three plays, that would be -15.  35 - 15 will give you 20 (unless they are on the opposite side, which then will give you 50 yards).  
Dang, those must've been horrible plays.  
the answer is 5×3-35 would be 5x3=15 35 -15=20
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