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Taya2010 [7]
3 years ago
13

The sum of the interior angles of a polygon is 1080 degrees. How many sides does the polygon have?

Mathematics
1 answer:
postnew [5]3 years ago
4 0

9514 1404 393

Answer:

  8

Step-by-step explanation:

The formula for the number of degrees in the sum of the interior angles of an n-sided polygon is ...

  sum of angles = 180°(n -2)

Filling in the given value and solving for n, we get ...

  1080 = 180(n -2)

  6 = n -2 . . . . . . divide by 180

  8 = n . . . . . . . . add 2

The polygon has 8 sides.

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D is the answer I think ?
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Factorize 2x^3+7x^2-3x-18
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3 years ago
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avanturin [10]

Answer:

x(35)\approx 11.8

Step-by-step explanation:

<u>Modeling With Functions </u>

We have a table of values of speeds vs distance taken for a car to stop. We are required to find a model that uses the square root and fits the given data to predict other values of d as a function of v.

By the nature of the problem, we can know that for v=0, d must be 0 too. So our model won't include a vertical shift or independent term. Being v the speed of the car and x the distance it takes to stop, we use the following model

x(v)=A\sqrt{v}

We must find A to make the function fit the data. Let's use the first point (v,x); (20,9)

9=A\sqrt{20}

Solving for A

\displaystyle A=\frac{9}{\sqrt{20}}

A\approx 2

Then we have

x(v)=2\sqrt{v}

Evaluating for v=35

x(35)=2\sqrt{35}=11.83

\boxed{x(35)\approx 11.8}

Last option

8 0
3 years ago
1 point
Elan Coil [88]

Your current balance if you started the day with $100 in your account is $73

First step is to calculate the total cash at bank

Using this formula

Total Cash at bank= Cash at bank + Deposit

Let plug in the formula

Total Cash at bank=$100+90

Total Cash at bank=$190

Second step is to calculate the amount debited

Debit amount=($60+$3)+($34+$20)

Debit amount=$63+$54

Debit amount=$117

Now let determine your current balance

Current balance=Total cash at bank-Amount debited

Let plug in the formula

Current balance=$190-117

Current balance=$73

Your current balance if you started the day with $100 in your account is $73

Learn more here:

brainly.com/question/22165984

7 0
1 year ago
X/x-3 times x-1/3-x​
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X-X^2/ (x-3)^2 try that I’m not 100% sure tho

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