Ask question

Ask question

All categories

2 years ago

8

If the sum of the measures of the angles of a polygon is 1,080 how many sides does the polygon have?

1 answer:

Mrrafil [7]2 years ago

3 0

<span>. An octagon has </span>eight<span> sides, so the sum of the angles of the octagon is </span>180(8<span> – 2) = </span>180<span>(6) = 1080 degrees.</span>

You might be interested in

Please help me with this question. I will also give brainliest!

Alekssandra [29.7K]

What question? I don’t see no question

3 0

2 years ago

X²=9 determine if x belongs to Q or belongs to Q dash

Elis [28]

x = 3 is the answer can you pls add me brainliest answer

4 0

1 year ago

Solve for L: d=LM/R2+R1

Bogdan [553]

D=LM/(R2+R1)
d(R2+R1)<span>=LM
[</span>d<span>(R2+R1)</span>]/M=L

7 0

2 years ago

Read 2 more answers

Solve for x. 5 x − 19 ≤ 1 OR − 4 x + 3 < − 6

k0ka [10]

$5x - 19 \leqslant 1$

change

$\leqslant \: to \: =$

given you

$5x - 19 = 1$

making x the subject by transferring the -19 to the right hand side of the equation

$5x = 19 + 1$

$5x = 20$

dividing through by 5

$\frac{5x}{5} = \frac{20}{5}$

$x = 4$

{ ${x:x \leqslant 4}$ }

also given

$- 4x + 3 < - 6$

change the operation sign to =

$- 4x + 3 = - 6$

$- 4x = - 6 - 3$

$- 4x = - 9$

dividing through by -4

$\frac{ - 4x}{ - 4} = \frac{ - 9}{ - 4}$

$x = \frac{9}{4}$

so the truth set is

{x:x>9/4}.

The < sign changes to > because we divided by a negative number when solving for x

4 0

2 years ago

A recursive rule for an arithmetic sequence is a₁=4;a_n=a_(n−1)−3 .

steposvetlana [31]

The explicit formula of the arithmetic sequence:

$a_n=a_1+(n-1)d$

d - common difference

We have the recursive formula of an arithmetic sequence:

$\left\{\begin{array}{ccc}a_1=4\\a_n=a_{n-1}-3\end{array}\right$

Therefore we have:

$a_1=4,\ d=-3$

Substitute:

$a_n=4+(n-1)(-3)=4-3n+3=7-3n$

<h3>Answer: aₙ = 7 - 3n</h3>

3 0

2 years ago