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Vikentia [17]
4 years ago
8

The graph of a function has the vertex (-5,17) and passes through the point (-3,28) how do I write it in vertex form

Mathematics
1 answer:
ivann1987 [24]4 years ago
3 0

Answer:

y = -11/4 (x − h)² + k

Step-by-step explanation:

Vertex form of a parabola is:

y = a (x − h)² + k

where (h, k) is the vertex.

Given that the vertex is (-3, 28):

y = a (x + 3)² + 28

Given that a point on the curve is (-5, 17):

17 = a (-5 + 3)² + 28

-11 = 4a

a = -11/4

y = -11/4 (x − h)² + k

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Yuliya22 [10]

The total bill paid for a person who uses 600 kWh in a month is $60.

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7 0
2 years ago
CUALES SON LOS GRADOS PARA HACER UNA GRAFICA DE PASTEL, CON LOS SIGUIENTES PORCENTAJES( 20%,50%,10%)
svlad2 [7]

Answer:

Lo primero que debemos saber, es que la gráfica de pastel nos permite dividir a una población, la cual sería el 100%, en porcentajes menores que representan algo.

En este caso tenemos los porcentajes 20%, 50%, 10%  (notar que no suman 100%, entonces nos falta algún porcentaje)

Bueno, como sabemos el gráfico (el cual es un círculo) representa el 100%.

Y en un círculo, tenemos un ángulo de 360°

Entonces comenzamos con la equivalencia:

360° = 100%

Entonces, ¿a que grado corresponde el 50%? Planteamos la ecuación:

x = 50%

Si tomamos el cociente entre las ecuaciones:

x = 50% y  360° = 100%

obtenemos:

x/360° = 50%/100%

resolviendo para x, obtenemos:

x = (50%/100%)*360° = 0.5*360° = 180°

Para los otros porcentajes hacemos lo mismo.

Para el de 20% tenemos:

y = 20%

planteamos la ecuación:

y/360° = 20%/100%

y = 0.2*360° = 72°

Finalmente, para el de 10% tendremos:

z = 10%

planteando la ecuación como antes:

z/360° = 10%/100%

z = 0.1*360 = 36°

Asi, hemos encontrado los grados correspondientes para cada porcentaje.

8 0
3 years ago
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coldgirl [10]
I think it’s b not sure tho
6 0
3 years ago
Help me asap please!
Fantom [35]
1.82 x 10^-6

When it is a negative number, you move the decimal to the left.

0.00000182
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