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Serga [27]
4 years ago
12

3y^2-8y+4 factor each polynomial

Mathematics
2 answers:
NeX [460]4 years ago
6 0

Answer:

(3y-2) (y-2)

Step-by-step explanation:

3y^2 -8y+4

We need to factor the polynomial

(3y    ) (y    )

4 factors into 4*1  and 2*2

We need it to be negative since we have a negative 8

3*-2 -2*1 = -6-2 = -8

-2*-2 = 4

So we have our factors

(3y-2) (y-2)


vfiekz [6]4 years ago
5 0

Answer:

(3x - 2)(x - 2)

Step-by-step explanation:

When factoring this, we know we will get something of the form (ax + b)(cx + d), which expands to ac(x^2) + (ad + bc)x + bd. Because ac = 3, and 3 is prime, a is 3 and c is 1, or vice versa. Knowing this, we have 3d + b = -8 and bd = 4. Guess and check reveals b and d are -2, and the answer is (3x - 2)(x - 2).

You might be interested in
Is 21.192 a rational or irrational
Klio2033 [76]
Rational number is something that does not have a decimal number going to infinity or something that can be written as a fraction

21.192 can be written as 21 192/1000 so yes its rational

i.e. √2 goes on forever and cannot be written as a fraction. so no it is not rational. it is irrational just like π.

Hope this helps :P
6 0
4 years ago
Please help<br> Write 0.16 as a fraction. <br> A) 1/12 <br> B) 1/3 <br> C) 1/6 <br> D) 1/9
umka2103 [35]

0.16 as a fraction becomes 16/100. This can be simplified to 4/25.

None of those are the right answer, though 1/6 as a decimal is 0.16666666... (the 6s repeat forever) so option C is what they're looking for.

5 0
3 years ago
Read 2 more answers
.Un recipiente cilíndrico de 5cm de radio y 10cm de altura se llena de agua. Si la masa del recipiente lleno es de 2kg, ¿cuál es
Lera25 [3.4K]

Answer:

La masa del recipiente vacío es 1,2146 kg.

Step-by-step explanation:

La densidad se define como la propiedad que tiene la materia, ya sean sólidos, líquidos o gases, para comprimirse en un espacio determinado. En otras palabras, la densidad es una magnitud que permite medir la cantidad de masa que hay en determinado volumen de una sustancia. Entonces, la expresión para el cálculo de la densidad es el cociente entre la masa de un cuerpo y el volumen que ocupa:

densidad= \frac{masa}{volumen}

Entonces la masa puede ser expresada como:

masa= densidad*volumen

En este caso:

  • densidad del agua= 1000 \frac{kg}{m^{3} }
  • volumen del recipiente cilíndrico= π*radio²*altura= π*(5 cm)²* 10 cm= π*(0,05 m)²*0,1 m= 7,854*10⁻⁴ m³

Reemplazando:

masa= 1000 \frac{kg}{m^{3} } * 7,854*10⁻⁴ m³

masa=0.7854 kg

Si la masa del recipiente lleno es de 2 kg, entonces se le resta la masa de agua calculada:

2 kg - 0,7854 kg= 1,2146 kg

Entonces,<u><em> la masa del recipiente vacío es 1,2146 kg.</em></u>

<u><em> </em></u>

<u><em></em></u>

8 0
3 years ago
Solve 7x + 1 &lt; 4(x - 2).
andrey2020 [161]
 x<<span>−<span>3
hope this helps! (:</span></span>
4 0
3 years ago
What is this answer?
Angelina_Jolie [31]
A because inverse is the opposite order so instead of -3/1 or 5/1 it becomes 1/-3 and 1/5
3 0
3 years ago
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