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ioda
3 years ago
13

A publisher estimates their costs of publishing a book is from $780,000 to $1,040,000. So far, they have spent $624,000. Which c

ompound inequality correctly expresses how much more the publisher can spend?
Mathematics
2 answers:
erastova [34]3 years ago
5 0
780,000-624,000=156,000
So the publisher can spend:
B is greater than or equal to 156,000
The sign would be < with a line under
(Were there any options because it would make it easier to make sure the answer is correct)
natulia [17]3 years ago
4 0

The <em><u>correct answer</u></em> is:

156,000 ≤ x ≤ 416,000

Explanation:

The amounts they can spend range from 780,000 to 1,040,000.  They have already spent 624,000 and have an unknown amount left to spend.  This gives us the inequality

780,000 ≤ 624,000 + x ≤ 1,040,000

To solve this, subtract 624,000 from all 3 sides:

780,000-624,000 ≤ 624000+x-624,000 ≤ 1,040,000-624,000

156,000 ≤ x ≤ 416,000

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Read 2 more answers
Ecuación de la hipérbola con centro en (0;0), focos en abrir paréntesis 0 coma espacio menos raíz cuadrada de 28 cerrar paréntes
yaroslaw [1]

Answer:

\frac{y^{2}}{25}-\frac{x^{2}}{3}=1

Step-by-step explanation:

Para resolver este problema debemos tomar en cuenta los datos que nos dan y la ecuación de una hipérbola. Comencemos con los datos:

centro: (0,0)

focos: (0,-\sqrt{28}),(0,\sqrt{28})

eje conjugado = 2\sqrt{3}

por los focos podemos ver que la hipérbola se dirige hacia el eje y, por lo que debemos tomar la siguiente forma de la ecuación de la parábola:

\frac{y^{2}}{a^{2}}+\frac{x^{2}}{b^{2}}=1

de los focos podemos obtener que:

c=\sqrt{28}

y del eje conjugado podemos saber que al dividir la longitud del eje conjugado dentro de 2 obtenemos b, así que:

b=\sqrt{3}

podemos utilizar la siguiente fórmula para obtener a:

c^{2}-a^{2}=b^{2}

si despejamos a en la ecuación obtenemos lo siguiente:

a=\sqrt{c^{2}-b^{2}}

ahora podemos sustituir los valores:

a=\sqrt{(\sqrt{28})^{2}-(\sqrt{3})^{2}}

a=\sqrt{28-3}

a=\sqrt{25}

a=5

así que media vez conozcamos a, podemos sustituir los datos en la ecuación de la hipérbola así que obtenemos lo siguiente:

\frac{y^{2}}{a^{2}}+\frac{x^{2}}{b^{2}}=1

\frac{y^{2}}{(5)^{2}}+\frac{x^{2}}{(\sqrt{3})^{2}}=1

\frac{y^{2}}{25}+\frac{x^{2}}{3}=1

si graficamos la hipérbola, queda como en el documento adjunto.

7 0
3 years ago
A lies on a bearing of 040° from B.<br>Calculate the bearing of B from A.​
Nimfa-mama [501]

Answer:

220°

Step-by-step explanation:

The bearing of B from A is

180° + 40° = 220°

4 0
3 years ago
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