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3 years ago

How to find the area of a regular polygon with only the apothem ?

2 answers:

8 0

Hopefully this sounds smart...If the drawing of your octagon (or whatever) has been separated into triangles, and one triangle's area is labeled, then you do not need to know the apothem. Just take the area of that one triangle, and multiply by the number of sides in the originalpolygon.

love history [14]3 years ago

6 0

Find the length of the sides plus the theapothem. Solution: Plug in what you know into both the area and the perimeter formulas to solve for the length of a side and the apothem.

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Out of 250 coins, 50 are in mint condition. What is the ratio of mint condition coins to the total number of coins?

dimulka [17.4K]

Answer:

$1 : 5$

Step-by-step explanation:

Given:

Mint condition coins = $50$

Total number of coins = $250$

Ratio

The questions asks for the ratio between mint condition coins to the total number of coins, so:

Mint condition coins : number of coins = $50:250$

$= 1:5$ (simplified form)

Hope this helps :)

7 0

3 years ago

spin [16.1K]

Answer:

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Simplify with steps.

gogolik [260]

1. (x−1)(5x+8)−2x+5

=(x)(5x)+(x)(8)+(−1)(5x)+(−1)(8)+−2x+5

=5x2+8x+−5x+−8+−2x+5

Combine Like Terms:

=5x2+8x+−5x+−8+−2x+5

=(5x2)+(8x+−5x+−2x)+(−8+5)

=5x2 + x + −3

2. (−2+5)(3x+9)

=9x+27

3. 2x+5−8x+12

=2x+5+−8x+12

Combine Like Terms:

=2x+5+−8x+12

=(2x+−8x)+(5+12)

=−6x+17

4. (−x+3)(−5x−2)

=(−x+3)(−5x+−2)

=(−x)(−5x)+(−x)(−2)+(3)(−5x)+(3)(−2)

=5x2+2x−15x−6

=5x2 − 13x − 6

4 0

3 years ago

A group of 31 friend get together to play a sport. First, people must be divided into teams. Each teams has to have exactly 3 pl

rjkz [21]

Answer:

10 teams. 1 person can't play.

Step-by-step explanation:

With 31 people, if each team has 3 players, then they can make 10 teams of 3.

We find this by doing: 31 ÷ 3. (the amount of people total who want to play, divided by the number of people who will be on each team. This gives us the total number of teams if that makes sense.)

31 ÷ 3 = 10.3 (10 $\frac{1}{3}$ )

However, 1 person cannot play. If you try to add in the "31st" player it'd make 10 $\frac{1}{3}$ teams. The question states "and no one can be on more than one team"

Hope this helps and have a nice day!

8 0

3 years ago

What is the slope of the line?

Ket [755]

Answer: slope = -1

Step-by-step explanation:

Count from point (2,0) to point (0,2)

You get 2/2 which simplifies to 1.

However the line is negative so the slope must be negative, giving you a slope of -1 as your final answer.

3 0

3 years ago