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2 years ago

5. ¿Cuál es la expresión algebraica que representa el área de la siguiente figura?

Mathematics

1 answer:

Elden [556K]2 years ago

4 0

The correct answer is:

A) 5x + 15

Explanation:
5x is the area of the green square (5•x)

15 is the area of the orange rectangle (5 •3 =15)

To have the total area you have to sum the areas of the two figures: 5x + 15

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Label the following graph as vertical or horizontal:

vfiekz [6]

The answer is vertical.

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2 years ago

Find the perimeter of the triangle.

PtichkaEL [24]

Answer:

Perimeter of the Triangle

$( {x}^{2} - 5x + 13) + (2 {x}^{2} - x + 19) + ( {x}^{2} + 3x + 21) \\ =(1 + 2 + 1) {x}^{2} + ( - 5 - 1 + 3)x + (13 + 19 + 21) \\ =(4 {x}^{2} - 3x + 53) \: units$

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2 years ago

How to find imaginary zeros anf real zeros of F(x)=-4x^5-8x^3+12x

Fofino [41]

Answer:

$x=\{0, -1, 1, -i\sqrt{3}, i\sqrt{3}\}$

Step-by-step explanation:

We are given the function:

$f(x)=-4x^5-8x^3+12x$

And we want to finds its zeros.

Therefore:

$0=-4x^5-8x^3+12x$

Firstly, we can divide everything by -4:

$0=x^5+2x^3-3x$

Factor out an x:

$0=x(x^4+2x^2-3)$

This is in quadratic form. For simplicity, we can let:

$u=x^2$

Then by substitution:

$0=x(u^2+2u-3)$

Factor:

$0=x(u+3)(u-1)$

Substitute back:

$0=x(x^2+3)(x^2-1)$

By the Zero Product Property:

$x=0\text{ and } x^2+3=0\text{ and } x^2-1=0$

Solving for each case:

$x=0\text{ and } x=\pm\sqrt{-3}\text{ and } x=\pm\sqrt{1}$

Therefore, our real and complex zeros are:

$x=\{0, -1, 1, -i\sqrt{3}, i\sqrt{3}\}$

4 0

2 years ago

Could someone answer this please? thanks a lot

Mila [183]

Answer:

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

What is 2.7 times 10^5

Dmitry [639]

The answer is 27000
Heres a trick:
2.7 x 10^5
You start from the decimal and move 5 spaces to the right which lead you to 27000
2.7----->. (27000) hope you understand

4 0

3 years ago

Read 2 more answers