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alina1380 [7]
3 years ago
10

What is the equation of a line that passes through (-2,-3) and is perpendicular to 2x-3y=6

Mathematics
1 answer:
S_A_V [24]3 years ago
7 0

For the perpendicular family we swap the coefficients on x and y, negating one. The point fixes the constant:


3x+2y = 3(-2)+2(-3)=-12


2y = -3x - 12


y = -3/2 x - 6


Choice A



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How many solutions does y=5/2x+2 and 2y=5x+4 have
maw [93]

Answer:

Step-by-step explanation:

y=5/2x+2

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3 0
3 years ago
Un aljibe de 12.4 m de profundidad se encuentra totalmente lleno de agua. ¿Cual es la presión en el fundo debido únicamente al p
Kamila [148]

Answer:

a) p = 121644 Pa

b) p_{T} = 221644 Pa  

Step-by-step explanation:

a) La presión en el fondo debido únicamente al peso del agua se puede calcular usando la siguiente ecuación:

p = \rho gh

En donde:

ρ: es la densidad del agua = 1000 kg/m³

g: es la gravedad = 9.81 m/s²

h: es la profundidad = 12.4 m

p = \rho gh = 1000 kg/m^{3}*9.81 m/s^{2}*12.4 m = 121644 Pa

Entonces, la presión en el fondo debido al agua es 121644 Pa.

b) Para hallar la presión total en el fondo debemos ahora considerar la presión atmosférica:

p_{T} = p_{0} + \rho gh  

En donde p₀ es la presión atomsférica = 75 cmHg

p_{T} = 750 mmHg\frac{1 Pa}{0.0075 mmHg} + 121644 Pa = 221644 Pa

Por lo tanto, la presión total en el fondo es 221644 Pa.

Espero que te sea de utilidad!

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2 years ago
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Answer:

option B

-5/2

Step-by-step explanation:

______________________

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