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2 years ago

Points and Brainliest Giveaway! What is the simplified form? (2x^2 + 3x) + (4x^2 -7)

Mathematics

2 answers:

ziro4ka [17]2 years ago

6 0

Answer:

$(2x^2+3x)+(4x^2-7)$ =

$6x^2+3x-7$

nika2105 [10]2 years ago

3 0

Answer:

Explanation:

We can factor the numerator and denominator as;

(

−

)

(

−

)

(

−

)

We can now cancel common term in the numerator and denominator:

(

−

)

(

−

)

(

−

)

⇒

−

However, we cannot divide by

so we must exclude:

⇒

and

−

⇒

−

Where:

≠

and

≠

−

Where:

≠

and

≠

Step-by-step explanation:

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El precio de un ordenador portátil ha aumentado un 25% y posteriormente fue rebajado un cierto porcentaje.Calcule que porcentaje

ZanzabumX [31]

Answer:

Se requiere un 20 por ciento de descuento.

Step-by-step explanation:

(This exercise has been presented in Spanish and for that reason explanation will be held in the same language)

Sea $p_{o}$ el precio original del computador portatil, el nuevo precio es:

$p_{1} =\left(\frac{100\,\% + 25\,\%}{100\,\%} \right)\cdot p_{o}$

$p_{1} = 1.25\cdot p_{o}$

Si $p_{2} = p_{o}$ , entonces el porcentaje requerido para recuperar el precio original es:

$r = \left(1-\frac{p_{2}}{p_{1}} \right)\times 100\,\%$

$r = \left(1-\frac{p_{o}}{1.25\cdot p_{o}} \right)\times 100\,\%$

$r = \left(1-\frac{1}{1.25} \right)\times 100\,\%$

$r = 20\,\%$

Se requiere un 20 por ciento de descuento.

5 0

2 years ago

The point slope form of a line that has a slope of 2/3 and passes through point (6,0) is shown below.

otez555 [7]

$m = \dfrac{Y_2 - Y_1}{X_2-X_1}$

$\dfrac{2}{3} = \dfrac{y -0}{x - 6}$

$3y = 2(x - 5)$

--------------------------------------------------------
Answer: 3y = 2(x - 5)
--------------------------------------------------------

5 0

3 years ago

Read 2 more answers

I need help, please

oksian1 [2.3K]

Yes, a rhombus is a rectangle if it has a similar shape of a square.Hope that helped

6 0

3 years ago

Give an example of each of the following, or argue that such a request is impossible.

Masteriza [31]

Answer and Step-by-step explanation:

Solution:

(a) Let (bn) be a bounded sequence of (an) then, Bolzano- Weierstrass theorem,

(bn) contains a subsequence that is converges.

(b) The sequence :

Xn = 1 + (-1) n / 2 + 1/n

Clearly, (xn) does not contain 1 or 0.

If we take sequence (x2n), then it converges to 1 and when we take sequence (x2n+1),

Then it converges to 0.

1,1/2

1, 1/2, 1/3

1, 1/2, 1/3, 1/4

i.e

(xn) = (1,1/2, 1, 1/2, 1/3, …)

Then, the subsequence (xn) that is identically ½ in second column and 1/3 is third column and so on.

It has sub sequence that converges to every point in infinite set {1, 1/2, 1/3, 1/4, 1/5…}.

(d) The sequence

{1, 1/2, 1/3, 1/4, 1/5…}

if we take sequence of given set, then, this set converges to zero. This is not contained in it.

If (xn) converges to every point in set {1, 1/2, 1/3 …} then there exists subsequence which converges to 0. And 0 does not belong to given set.

3 0

3 years ago

A student is attempting to factor a polynomial. Sample mathematical work is shown below. Which statement best applies to the sam

Vladimir [108]

The choices are:

A. The student identified the greatest common factor incorrectly.
B. The student incorrectly divided each term by the greatest common factor.
C. The student failed to simplify the expression.
D. The mathematical work shown is correct.

I think the correct answer from the choices is option D. The mathematical work shown is correct. Hope this answers the question. Have a nice day.

4 0

2 years ago