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yKpoI14uk [10]
3 years ago
14

If the sum of the interior angles of a polygon is 1800 how many sides does it have?

Mathematics
2 answers:
kenny6666 [7]3 years ago
7 0

Answer:

It is a dodecagon, so there are 12 sides.

Step-by-step explanation:

GREYUIT [131]3 years ago
6 0

Answer:

there are 12 sides

please give this the brainliest

Step-by-step explanation:

it is a dodecagon...so the second one

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TEA [102]
The answer to the equation is the second option.
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3 years ago
Is 3 x 10 to the 5th power real, imaginary, rational, or irrational?
chubhunter [2.5K]

Answer:

real

Step-by-step explanation:

300000

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3 years ago
The graph of f ′ (x), the derivative of f of x, is continuous for all x and consists of five line segments as shown below. Given
Rom4ik [11]

f'(x)\ge0 for all x in [-3, 0], so f(x) is non-decreasing over this interval, and in particular we know right away that its minimum value must occur at x=-3.

From the plot, it's clear that on [-3, 0] we have f'(x)=-x. So

f(x)=\displaystyle\int(-x)\,\mathrm dx=-\dfrac{x^2}2+C

for some constant C. Given that f(0)=7, we find that

7=-\dfrac{0^2}2+C\implies C=7

so that on [-3, 0] we have

f(x)=-\dfrac{x^2}2+7

and

f(-3)=\dfrac52=2.5

5 0
3 years ago
how is building a triangle with different side lengths given different than building a quadrilateral with given side lengths?​
Mariana [72]

Answer:

there can only be one possibility for a triangle when given the lengths of all the sides but for a quadrilateral the measure of the angles could differ depending on the person building the,. this is because triangles are more stable than quadrilaterals meaning that their side lengths follow a lot more rules than quadrilaterals do, for example the length of the side lengths can indicate whether or not that triangle is an acute, obtuse, or right triangle, and this is also evident by considering that you can use the SSS theorem to indicate two triangles are congruent, but for quadrilaterals you cant do that

Step-by-step explanation:

8 0
3 years ago
Please help me. give 10 points<br><br><br>​
icang [17]

Answer:

x intercept: (3, 0), (7, 0)

y-intercept: (0, -21)

vertex : (5,4)

the graph points down

Step-by-step explanation:

f(x) = - (x - 3)(x - 7)

f(x) = - (x^2 - 7x - 3x + 21)

f(x) = - (x^2 - 10x + 21)

f(x) = -x^2 + 10x - 21

x-intercept when f(x) = 0 so

x - 3 = 0; x = 3

x - 7 = 0; x = 7

x intercept: (3, 0), (7, 0)

y-intercept when x = 0  so  y = -21

y-intercept: (0, -21)

vertex:

x = -b/2a

x = -10/ 2(-1)

x = 5

plug in x = 5 into the equation to find y

y = -(5)^2 + 10(5) - 21

y = -25 + 50 - 21

y = 4

so vertex : (5,4)

Since a = - 1<0, the graph is going downward and has maximum

4 0
3 years ago
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