The sum of the measures of the interior angles of a polygon is 1140. What kind of polygon is it ?

Mathematics

1 answer:

sukhopar [10]2 years ago

5 0

Answer:

5) Regular decagon. 6) Yes.

Step-by-step explanation:

Number 6 is yes bc the interior angles of a triangle have to equal 180, and 1+2+177 equals 180.

You might be interested in

what is 9z+2=6z-10-z-4 we have to do something called railroad tracks where we put lines down the sides of the equal sign but I

Colt1911 [192]

You want to solve for 'z'.
First combine like terms on either side of the equal sign.

Left side: 9z +2 ----> No like terms, leave alone

Right side: 6z - 10 -z - 4 ----> circle like terms and add
6z -z = 5z
-10 -4 = -14
Now the equation is:
9z + 2 = 5z - 14

Get all the 'z' terms on the left side and all the numbers on right side.
You can move a term to the other side if you flip the sign.

Move 5z to left side, flip the sign to -5z
Move '2' to right side, flip the sign to -2

9z - 5z = -2 -14

Add like terms
4z = -16

Divide by 4 on both sides
z = -4

3 0

3 years ago

Is -56,912 a irrational or rational number

kow [346]

I believe it's a rational number, since it's an integer.

7 0

2 years ago

A jar of marbles has 27 green marbles. This represents 30% of the marbles in the jar. How many total marbles are in the jar? Ple

Brums [2.3K]

Answer:

90 i think

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

428 students were surveyed about their preferences of sports. 146 students like football, 144 students like baseball, and 45 stu

ella [17]

This is what we already know:

$\left[\begin{array}{cccc} &YB&NB&total\\YF&45&[unknown]&146\\NF&[unknown]&[unknown]&[unknown]\\total&144&[unknown]&428\end{array}\right]$

And using this information, we can fill the table out. Remember that everything must add up to the total in the column and row. The complete table looks like this:

$\left[\begin{array}{cccc} &YB&NB&total\\YF&45&101&146\\NF&99&183&282\\total&144&284&428\end{array}\right]$

Using the complete table, we see the fraction for students that only like baseball is $\frac{99}{428}$ and students who only like football is $\frac{101}{428}$ . All you need to do is add these fractions together to get your answer.