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3 years ago

The sum of the interior angles of an n-gon is 180° (n - 2). A) True B) False

Mathematics

2 answers:

garik1379 [7]3 years ago

7 0

True

hope it helps

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8_murik_8 [283]3 years ago

7 0

The answer is A

hope this helps

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I need help ASAP people

nirvana33 [79]

Answer:

point D: (2, -4)

Step-by-step explanation:

5 0

3 years ago

M is the midpoint of AN, A has coordinates

maksim [4K]

Step-by-step explanation:

According to Question , M is the midpoint of AN, A has coordinates (-7,4), and M has coordinates (-4, -1).

Figure :-

$\setlength{\unitlength}{1 cm}\begin{picture}(20,12) \put(4,0.2){\line(0,-1){0.4}}\put(1,0){\line(1,0){6}} \put(3.8,-0.6){$\bf M(-4,-1) $} \put(1,-0.6){$\bf A (-7,4)$} \put(6.8,-0.6){$\bf N(x,y)$} \end{picture}$

Let the coordinates of N be ( x , y )

Now , according to Midpoint Formula , the midpoint of points say A(x , y) and B (x' , y') is given by ,

$\boxed{\blue{ \bf Midpoint =\bigg( \dfrac{x+x'}{2} , \dfrac{y+y'}{2} \bigg) }}$

On using this formula ,

$=> Midpoint = \bigg( \dfrac{x+x'}{2} , \dfrac{y+y'}{2} \bigg) \\ \\ => (-4, 1) = \bigg( \dfrac{x -7 }{2} , \dfrac{y + 4 }{2}\bigg) \\ \\ => -4 = \dfrac{x-7}{2} \\\\ => x - 7 = -8 \\\\ => x = 7 -8 \\\\ \boxed{\red{\sf=> x = -1 }} \\\\ => \dfrac{y+4}{2}=-1 \\\\=> y +4 = -2 \\ \\ y = -4-2 \\\\\boxed{\red{\sf=> y = -6 }}$

8 0

3 years ago

Read 2 more answers

Help!!!

WITCHER [35]

Answer: A. . Reflect triangle ABC across the x-axis, followed by a translation

5 units left.

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

A country clerk has given amount of money to budget for cultural events

Neko [114]

Answer:

A. the total amount of the budget given to the country

Step-by-step explanation:

In order to know the answer, you have to check what the y-axis represents. In the graph above, it represents the "Budget Remaining," which is expressed in thousands of dollars. On the other hand, the x-axis represents the "Time," which is expressed in months.

Point (0,18) shows the total amount of the budget for the Cultural Events in the country. It starts at 18,000 dollars and decreases as months pass by. This is shown by the graph's "negative slope." This means that as the number of months increases, the amount of money decreases.

5 0

3 years ago

Which of the following polynomial equations has 1, 4, -5 as three of its roots?

drek231 [11]

Answer: x³-21x+20=0

Step-by-step explanation:

To find which polynomial has 1, 4, -5 as the roots, all we have to do is equal each root to 0 and multiply all factors together.

1 is (x-1)=0

4 is (x-4)=0

-5 is (x+5)=0

Now, we just multiply them together.

(x-1)(x-4)(x+5)=0 [FOIL]

(x²-4x-x+4)(x+5)=0 [combine like terms]

(x²-5x+4)(x+5)=0 [FOIL]

x³+5x²-5x²-25x+4x+20=0 [combine like terms]

x³-21x+20=0

Now we know x³-21x+20=0 is the polynomial with those roots.

6 0

2 years ago