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SashulF [63]
3 years ago
8

Please help me! - 5 Questions

Mathematics
2 answers:
Zielflug [23.3K]3 years ago
8 0

Answer:

the first one is  -2y2-10y-1

the second one is 18x4yx2

the third one is -5x5=x4-6z3

Step-by-step explanation:

Elden [556K]3 years ago
5 0

Answer:

#3

Step-by-step explanation:


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Makayla's car used 4 gallons to travel 148 miles. How many miles can the car go on one gallon of gas?
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Answer:

34

Step-by-step explanation:

184 divided bye 4

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Round 678,483 to the nearest hundred thousand
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Randy has two 28.pound blocks of ice for his snow cone stand. if each snow cone.⅔ requires; Pound to ice, how many snow cones ca
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Answer:

Randy can make 42 snow cones.

Step-by-step explanation:

28 divided by 2/3 = 42.

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4 years ago
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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
Can Someone help and explain how to get this answer?
Kay [80]
44%
42%
78%
21%
30%
8%
i calculated everything
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