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3 years ago

Find the sum of the interior angles of a regular 14-gon.

Mathematics

1 answer:

Ira Lisetskai [31]3 years ago

4 0

9514 1404 393

Answer:

2160°

Step-by-step explanation:

The sum of interior angles of a convex n-gon is ...

angle sum = 180(n -2)°

When n=14, the angle sum is ...

angle sum = 180(14 -2)° = 2160°

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The graph shows the distance y, in feet, a pendulum moves to the right (positive displacement) and to the left (negative displac

Dmitriy789 [7]

Answer:

2.5 seconds

Step-by-step explanation:

Resting position is at y = zero which mean x intercept

So, we need to find the time between two consecutive points of intersection with the x-axis.

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From the graph we can deduce that

2.5 seconds are required for the pendulum to move from its resting position, swing in one direction and return to its resting position.

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3 years ago

- 3y - 7=5y + 17 solve for y

KengaRu [80]

Answer: y=-3

Step-by-step explanation:

- 3y - 7=5y + 17

-7=8y+17

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2 years ago

The sides of a triangle have lengths 3, 8, and 9. What kind of triangle is it?

Serga [27]

Answer:

obtuse

Step-by-step explanation:

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8 0

3 years ago

Find the TWO integers whos product is -12 and whose sum is 1

konstantin123 [22]

Answer:

$\rm Numbers = 4 \ and \ -3.$

Step-by-step explanation:

Given :-

The sum of two numbers is 1 .
The product of the nos . is 12 .

And we need to find out the numbers. So let us take ,

First number be x
Second number be 1-x .

According to first condition :-

$\rm\implies 1st \ number * 2nd \ number= -12\\\\\rm\implies x(1-x)=-12\\\\\rm\implies x - x^2=-12\\\\\rm\implies x^2-x-12=0\\\\\rm\implies x^2-4x+3x-12=0\\\\\rm\implies x(x-4)+3(x-4)=0\\\\\rm\implies (x-4)(x+3)=0\\\\\rm\implies\boxed{\red{\rm x = 4 , -3 }}$

Hence the numbers are 4 and -3 

3 0

3 years ago

Nathan needs some paint for his bedroom. He finds two cans of white paint, four cans of green paint and three cans of pink paint

lilavasa [31]

Answer:

3/9 or 33.33%

Step-by-step explanation:

there are 9 total cans and 3 pink cans. So, that'd be 3/9 or 33.33%

hope this helps!

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3 years ago