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Masteriza [31]
3 years ago
7

Pls I need help with this

Mathematics
1 answer:
tigry1 [53]3 years ago
6 0

Answer:

umm I think I know hold on

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  1. divide the larger number by the original number .
  2. subtract one from the result of the division
  3. multiply this new number by 100
  4. divide the percentage change by the period between the two numbers
  5. you now have the percentage increase over time

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2 years ago
An architect makes a scale drawing of a building. The scale used is 1 cm represents 20 m. Calculate the actual width of the buil
sveticcg [70]

Answer:

Step-by-step explanation:

1.225 cm long

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3 years ago
Someone please help! I’ll give brainliest!!
Lana71 [14]

Answer:

(1436.8cm³)  let me know if that helps

Step-by-step explanation:

-so if the diameter is a straight line and it's 15 cm

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  - 3.14 or π

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3 0
2 years ago
Me pueden ayudar en esta ecuación bicuadratica, porfaaa: 9p⁴=—12x²—6/9
Dominik [7]

Answer:

x = -1.129i, -0.241i, 0.241i o 1.129i.

Tenga en cuenta que i = √(-1), i es el representante de un número complejo.

x = -1.129i, -0.241i, 0.241i or 1.129i.

Note that i = √(-1), i is the representative of a complex number.

Step-by-step explanation:

Pregunta correcta

¿Me pueden ayudar en esta ecuación biquadratica, por favor: 9x⁴ = —12x² - 6/9

Solución

9x⁴ = —12x² - 6/9

9x⁴ + 12x² + 6/9 = 0

multiplicar por 9

81x⁴ + 108x² + 6 = 0

Deje x² = y, entonces x⁴ = y²

81y² + 108y + 6 = 0

Resolviendo esta ecuación cuadrática

y = -0.0581 o y = -1.275

Recordemos, x² = y

x = ±√y

Si y = -0.0581

x = ± √(-0.0581) = ± 0.241i = 0.241i o -0.241i

Si y = -1.275

x = ± √(-1.275) = ± 1.129i = 1.129i o -1.129i

x = -1.129i, -0.241i, 0.241i o 1.129i.

Tenga en cuenta que i = √(-1), i es el representante de un número complejo.

¡¡¡Espero que esto ayude!!!

Correct Question

Can you help me in this biquadratic equation, please: 9x⁴ = —12x² — 6/9

Solution

9x⁴ = —12x² — 6/9

9x⁴ + 12x² + 6/9 = 0

multiply through by 9

81x⁴ + 108x² + 6 = 0

Let x² = y, then x⁴ = y²

81y² + 108y + 6 = 0

Solving this quadratic equation

y = -0.0581 or y = -1.275

Recall, x² = y

x = ±√y

If y = 0.0581

x = ±√(-0.0581) = ±0.241

If y = -1.275

x = ± √(-1.275) = ± 1.129i = 1.129i or -1.129i

Hence x = -1.129i, -0.241i, 0.241i or 1.129i.

Note that i = √(-1), i is the representative of a complex number.

Hope this Helps!!

5 0
3 years ago
If you have 2/3 of butter but you need 4/6 how much more butter do you need
dmitriy555 [2]

Answer:

You do not need any more butter because when you divide 4/6 by 2 it gives 2/3

6 0
3 years ago
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