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Leto [7]
3 years ago
8

Plss help!!!!! Ty! What is the area of this semicircle?

Mathematics
2 answers:
Pie3 years ago
7 0
Area of a circle is pi (r)^2
So area of semi circle is 1/2 pi (r)^2
Then area =32 pi or ~100.53
s2008m [1.1K]3 years ago
4 0

Answer:

{\small{\boxed{\sf{\red{here's  \: your  \: solution...}}}}} \\  \\{\small{\boxed{\sf{\purple{area \: of \: semicircle \:  =\pi \: r {}^{2}  { \div 2} {} }}}}} \\  \\ \\{\small{\boxed{\sf{\purple{radius = 8cm }}}}} \\  \\ \\{\small{\boxed{\sf{\purple{area \: of \: semicircle \:  =(22/7 \times 64) \div 2}}}}} \\  \\ \\{\small{\boxed{\sf{\purple{area \: of \: semicircle \:  =100.57 \: cm {}^{2} }}}}}

\small\mathfrak\green{Hope  \: it \: helps \:  \:  .......| }

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1.Encuentra la ecuación de la circunferencia que tiene como ecuación ordinaria (x-4)² + (y+5)²= 25 2- encuentra la ecuación gene
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Responder:

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Explicación paso a paso:

A partir de la pregunta, debemos expresar la ecuación en la forma estándar de un círculo expresado como;

x² + y² + 2gx + 2fy + c = 0 donde;

(-g, -f) es el centro.

1) Para la ecuación (x-4) ² + (y + 5) ² = 25

Expande el paréntesis;

(x-4) ² + (y + 5) ² = 25

x²-8x + 16 + y² + 10x + 25 = 25

x²-8x + 16 + y² + 10y + 25-25 = 0

Recopile términos similares;

x² + y²-8x + 10y + 16 + 0 = 0

<em>x² + y²-8x + 10y + 16 = 0 </em>

<em>Por lo tanto, la ecuación requerida es x² + y²-8x + 10y + 16 = 0 </em>

<em> </em>

2) Para la expresión (x + 1) ² + (y + 9) ² = 49

x² + x + 1 + y² + 18y + 81 = 49

x² + x + 1 + y² + 18y + 81-49 = 0

Recopile términos similares;

x² + y² + x + 18y + 82-49 = 0

<em>x² + y² + x + 18y + 33 = 0 </em>

<em>Por tanto, la ecuación requerida es x² + y² + x + 18y + 33 = 0</em>

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2 years ago
A new factory is growing fast and hiring a lot of new workers. Every week, the total number of workers doubles in size. If it ta
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Answer:

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3 years ago
How do you figure out #9 and #10
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#9 the sum of two angles is 90 degrees, creating a right angle.

#10 the sum of the two angles is 180 because the form a supplementary angle
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What are the expressions in factored form?<br><br> 6x^2 + 4x<br><br> 4x^2 + 11x + 6<br><br> 9x^2 - 4
Alexxandr [17]
<span>6x^2 + 4x = 2x(3x + 2)

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Read 2 more answers
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