what is the converse of the following conditional if a point is in the fourth quadrant then its coordinates are negative

Mathematics

1 answer:

Vsevolod [243]3 years ago

5 0

Your answer will be 2-2

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What is the sum ? (2x^2-4x+1)+(5x+x^2-1)

Ipatiy [6.2K]

$Hello$ $There!$

The answer is...

$3x^2+x$

HERE'S A EXPLANATION!

$2x^2-4x+1+5x+x^2-1$

$=2x^2+-4x+1+5x+x^2+-1$

Combine these like terms!

$=2x^2+-4x+1+5x+x^2+-1$

$=(2x^2+x^2)+(-4x+5x)+(1+-1)$

$=3x^2+x$

ANSWER!

$=3x^2+x$

Hopefully, this helps you!!

$AnimeVines$

6 0

3 years ago

Help me please k12..

34kurt

Answer: It's 8

Step-by-step explanation:

4 0

3 years ago

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Calculate the sum of the interior angles of the following polygon 6 sided 15 sided and 3 sided

Dvinal [7]

Answer:

720°, 2340°, 180°

Step-by-step explanation:

Look at the attached image of a regular hexagon. I drew all possible lines from a vertex to other vertices (AC, AD, AE). Drawing in all those diagonals splits the hexagon into 4 triangles, and adding up the measures of all the triangle angles would account for all the interior angles of the hexagon.

♦ Four triangles have an angle sum of 180° x 4 = 720° (180° in each triangle).

See attached image2 to see what happens in an octagon. There are six triangles formed, so the total of all interior angle measures is 6 x 180° = 1080°.

What about a 15-sided regular polygon? How many triangles would be formed by putting in all the diagonals coming from one vertex? There will be 2 fewer triangles than the number of vertices, 13.

♦ The total of interior angle measures in a 15-gon is 13(180°) = 2340°

♦ A polygon with 3 sides is a single triangle; interior angle sum = 180°