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sveticcg [70]
3 years ago
13

ILL GIVE BRAINELST

Mathematics
1 answer:
Angelina_Jolie [31]3 years ago
5 0

Answer: number 3 4 5

Step-by-step explanation:hope this helps!

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Sea un cuadrado de 2 pulgadas de lado uniendo los puntos medios se obtiene otro cuadrado inscrito en el anterior si repetimos es
Ne4ueva [31]

Answer:

1) La serie geométrica formada es

4, 2, 1,..., ∞

2) La suma al infinito de las áreas de los cuadrados es 8 in.²

Step-by-step explanation:

1) El área del primer cuadrado, a₁ = 2² = 4 pulgadas²

El área del siguiente cuadrado, a₂ = (√ (1² + 1²)) ² = (√2) ² = 2 pulg²

El área del siguiente cuadrado, a₃ = ((√ (2) / 2) ² + (√ (2) / 2) ²) = 1 pulg²

Por lo tanto, la razón común, r = a₂ / a₁ = 2/4 = a₃ / a₂ = 1/2

Las áreas de los cuadrados progresivos forman una progresión geométrica como sigue;

4, 4×(1/2), 4 ×(1/2)²,...,4×(1/2)^{\infty}

De donde obtenemos la serie geométrica formada de la siguiente manera;

4, 2, 1,..., ∞

2) La suma de 'n' términos de una progresión geométrica hasta el infinito para -1 <r <1 se da como sigue;

S_{\infty} = \dfrac{a}{1 - r}

Por lo tanto, la suma de las áreas de los cuadrados hasta el infinito se obtiene sustituyendo los valores de 'a' y 'r' en la ecuación anterior de la siguiente manera;

La \ suma \ al \ infinito \ del \ cuadrado \ S_{\infty}  = \dfrac{4 \ in.^2}{1 - \dfrac{1}{2} } = \dfrac{4 \ in.^2}{\left(\dfrac{1}{2} \right)} = 2 \times 4 \ in.^2= 8 \ in.^2

La suma al infinito de las áreas de los cuadrados, S_{\infty} = 8 in.²

7 0
3 years ago
there are 20 cups of flour in the pacages of flour they buy ow many small muffins can they mae if they each take 1/4 of flour
lesya692 [45]
1/4 converted into a decimal is .25
20÷.25=80
the answer is 80
7 0
3 years ago
What is the midpoint of the line segment with endpoints at (4, 12) and (-10, 32)?
Angelina_Jolie [31]

Answer:

The midpoint is (-3,22)

Step-by-step explanation:

Use the midpoint formula (x1+x2 /2, y1+y2 /2)

6 0
3 years ago
D
Anastaziya [24]

Answer: 1200 m

75\ m/min

Step-by-step explanation:

Given

Alex Jogged 3 rounds of 400 m track

It took 16 min to Jog 3 rounds

(a) Total distance Alex had Jogged

\Rightarrow 3\times 400=1200\ m

(b) Average speed is the total distance by the total time

\Rightarrow \dfrac{1200}{16}=75\ m/min

8 0
3 years ago
If 91 is 10% of a number, what is that number? *
loris [4]

Answer:

910

Step-by-step explanation:

so to find 100% ( the number)

91 x 10

910 would be the number

4 0
3 years ago
Read 2 more answers
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