Find the area of the polygon. 12 cm12 cm19 cm The area of the polygon is square centimer

Mathematics

1 answer:

Vilka [71]2 years ago

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Rewrite each equation in vertex form by completing the square. Then identify the vertex.

Cerrena [4.2K]

ANSWER

Vertex form:

$y = ( {x + 4)}^{2} - 11$

Vertex

V(-4,-11)

EXPLANATION

The given expression is

$y = {x}^{2} + 8x + 5$

We complete the square to get the vertex form.

Add and subtract half the square of the coefficient of x.

$y = {x}^{2} + 8x + 16 + 5 - 16$

$y = ( {x + 4)}^{2} - 11$

The vertex is

V(-4,-11)

7 0

2 years ago

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HELP ON 11&12 PLZ AND THX

yarga [219]

Um i just started school about three weeks ago and im in advanced but i have not learned that

8 0

3 years ago

PLEASE HELP this is due soon, I will mark brainliest if I can.

I am Lyosha [343]

Answer:

102 cm

Step-by-step explanation:

Diagonals of a rhombus are perpendicular.
Sides are of equal length.

<u>Use Pythagorean to work out the side length.</u>

a² = (d₁/2)² + (d₂/2)²
a² = (24/2)² + (45/2)² = 650.25
a = √650.25
a = 25.5 cm

<u>The perimeter is:</u>

P = 4a
P = 4*25.5 = 102 cm

6 0

2 years ago

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vovangra [49]

Find AC using Pythagorean theorem
6^2 + 8^2 = AC^2
36 + 64 = AC^2
100 = AC^2
10 = AC

6+8+10 = 24

24/60 = 2/5

10/x = 2/5
50 = 2x
25 = x

5 0

2 years ago

9.2 HW Central Angles, Arc Measures, & Arc Length

kap26 [50]

Answer:

I can help you with this, i just need the actual questions.

Step-by-step explanation:

5 0

2 years ago