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3 years ago

13

How to complete the square of x^2+8x+15=0

1 answer:

earnstyle [38]3 years ago

6 0

Answer:

x= -3, -5

Step-by-step explanation:

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Si mi hermano gana 589 pesos diarios si ha trabajado 15 días de este mes ¿cuánto dinero ha ganado?

weeeeeb [17]

Mi hermano ha ganado un dinero <em>devengado</em> de 8835 pesos en 15 días.

En esta pregunta debemos determinar el dinero <em>devengado</em> por un período de 15 días a partir de una tasa diaria <em>constante</em>. Esa cantidad es igual al producto de la tasa diaria <em>constante</em>, en pesos por día, y el número de días <em>trabajados</em>, en días:

$x = 589\,\frac{\$}{dia}\times 15\,dias$

$x = 8835\,\$$

Mi hermano ha ganado un dinero <em>devengado</em> de 8835 pesos en 15 días.

Para aprender más sobre álgebra y aritmética, invitamos cordialmente a ver esta pregunta: brainly.com/question/953809

6 0

2 years ago

How would I do this? What would it be?

Igoryamba

Answer: $x=80$

Step-by-step explanation:

By definition, the sum of the exterior angles of a polygon is 360 degrees.

Knowing this, you can write the following equation:

$(x+8)+(2x+12)+(x+20)=360$

Then, you must solve for "x" in order to find its value. To do it, you can follow these steps:

1. You need to add the like terms:

$(x+8)+(2x+12)+(x+20)=360\\\\4x+40=360$

2. Now, subtract 40 from both sides of the equation:

$4x+40-(40)=360-(40)\\\\4x=320$

3. Finally, you must divide both sides of the equation by 4. Then:

$\frac{4x}{4}=\frac{320}{4}\\\\x=80$

7 0

3 years ago

their are 10 boxes in a grab bag .the box are identical except that 7 of them contain 20$ bills . that is the probability of get

romanna [79]

7/10 or 70% is the correct answer

5 0

3 years ago

Two quantities of data have a strong positive correlation. Can the line of best fit for the data set have a correlation coeffici

zhuklara [117]

I think it’s c for this answer

4 0

3 years ago

What is the answer to this question

julia-pushkina [17]

I hope this helps you

Formula => I=PRT

900=7500.R.2

R=900/15000

R=0,06

3 0

2 years ago