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Masteriza [31]
3 years ago
11

What substitution should be used to rewrite 4x^4-21x^2+20 =0 as a quadratic equation

Mathematics
1 answer:
marysya [2.9K]3 years ago
7 0

I would substitute y = x^2

4y^2 -21y+20=0

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Cesar comenta que su papa esta interesado en comprar un terreno o vivienda.En estos tiempos de cuarentena su padre ha aprendido
quester [9]

Answer:

El área de la casa es de 1,304 m²

Step-by-step explanation:

De las dimensiones dadas en línea, tenemos que el área del jardín = 640 m²

Las dimensiones del jardín son;

Longitud = 40 m.

Ancho = a m

Por lo tanto, 40 × a = 640

a = 640/40 = 16 m

La dimensión del compuesto es así;

Longitud = 40 + 14 = 54 m

Ancho = 20 + a = 20 + 16 = 36 m

El área del compuesto = Área de la casa + Área del jardín

El área del compuesto = Ancho del compuesto × Longitud del compuesto

El área del compuesto = 36 × 54 = 1,944 m²

∴ 1,944 m² = Área de la casa + Área del jardín

1,944 m² = Área de la casa + 640 m²

Área de la casa = 1,944 m² - 640 m² = 1,304 m²

El área de la casa = 1,304 m².

3 0
2 years ago
What is -0.75p-2=0.25p
ki77a [65]

you move first the number without the variable to the other side with the opposite sign

-0.75p=0.25+2

-0.75p=2.25

then as -0.75 is multiplying you pass it to the other side dividing

p=2.25/-0.75

p=-3



6 0
3 years ago
Read 2 more answers
please help i am failing math class she said if you dont turn in this Backpack artifact task am going to fail it is 6th grade ma
agasfer [191]

Answer:

I might be able to help as long as there's no algebra involved

6 0
2 years ago
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Which pair of terms can be used to represent any two consecutive odd numbers?
ehidna [41]

Answer:

x and 2x+1

Step-by-step explanation:

5 0
2 years ago
What is the perimeter of the figure to the nearest tenth of a millimeter?
Pavlova-9 [17]
We have to calculate the perimeter of the figure to the nearest tenth of a millimeter. This figure is made of a rectangle and a half of a circle. The first figure has the perimeter: 3 + 6 + 3 = 12 mm. The second figure has the perimeter: 2 * Pi * r / 2 = Pi * r ; and the radius : r = 6/2 = 3 mm. So Pi * 3 = 3.14 * 3 = 9.42. Fimally : 12 + 9.42 = 21.42 or 21.4 to the nearest tenth. Answer: C. 21.4 millimeters<span>. </span>
7 0
3 years ago
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