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AleksandrR [38]
4 years ago
8

What is the remainder when (3x3 – 2x2 + 4x – 3) is divided by (x2 + 3x + 3)? A)30 B)3x – 11 C)28x – 36 D)28x + 30

Mathematics
2 answers:
ohaa [14]4 years ago
6 0

The correct option is:   D) 28x+30

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

We will divide (3x^3 - 2x^2 + 4x - 3)  by (x^2 + 3x + 3) using long division method.

                                3x- 11

x^2+3x+3) \overline{3x^3-2x^2+4x-3}

                 <u>     -(3x³+9x²+9x)       </u>

                              -11x²- 5x - 3

                     <u>       -(-11x²- 33x - 33)    </u>

                                     28x +30


So, the remainder will be:  28x+30

GrogVix [38]4 years ago
5 0

the answer is 28x + 30

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How much of my dollhouse carpet is showing in the figure?
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110 cm² (110 square cm)

Step-by-step explanation:

To solve this we first need to find the entire area of the carpet

<u>Area = L × W</u>

17 cm × 8 cm  = 136 cm²

Now that we have the area of the whole carpet, we can find the area of the table and the bench

5 cm  × 4 cm  = 20 cm²

4 cm × 1.5 cm = 6 cm²

Now we can subtract the areas of the bench and the table to find how much of the carpet is showing

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3 years ago
Simplify The Complex Fraction. 6/7 over 1/7 ​
Likurg_2 [28]

Answer: 6

Step-by-step explanation:

6/7 divided by 1/7 would be the same as 6 times 7 over 7 times 1 because to divide fractions you multiply by the reciprocal etcetera. Therefore, the fraction would become 42/7 which, if simplified, gives you 6/1, and thus the answer of one. Hope this helps!

5 0
4 years ago
4. Andrés desea embaldosar el piso de su casa que tiene 375 cm de ancho y 435 cm de largo. Calcula la longitud del lado que tend
svetlana [45]

Answer:

Sabemos que el piso es un rectángulo de 435 cm de largo y 375 cm de ancho.

Recordar que para un rectángulo de largo L, y ancho W, el área es:

A = L*W

Entonces el área del piso, será:

A = 435cm*375cm = 163,125 cm^2

Primero, sabemos que se utilizaran baldosas (las cuales son cuadradas) y queremos saber la longitud de lado que tendrían las baldosas.

No tenemos ningún criterio para encontrar este lado, solo que (si queremos usar un número entero de baldosas) el largo L del lado de la baldosa deberá ser un divisor de tanto el ancho como el largo del suelo.

Dicho de otra forma

el largo, 435cm, tiene que ser múltiplo de L

el ancho, 375cm, tiene que ser múltiplo de L.

Por ejemplo, ambos números son múltiplos de 5, entonces podríamos tomar L = 5cm

En este caso, el área de cada baldosa es:

a = L^2 = 5cm*5cm = 25cm^2

Y el número total de baldosas que necesitaría usar esta dado por el cociente entre el área del suelo y el area de cada baldosa.

N = ( 163,125 cm^2)/(25cm^2) = 6,525 baldosas.

También sabemos que ambos números (435cm y 375cm) son múltiplos de 15cm

Entonces las baldosas podrían tener 15cm de lado.

En este caso, el área de cada baldosa es:

A = (15cm)^2 = 225cm

En este caso el número total de baldosas necesarias será:

N =  ( 163,125 cm^2)/(225cm^2) = 725 baldosas.

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