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3 years ago

15

The vertex of a parabola is at (-2,-3). When the y-value is -2, the x-value is -5. What is the coefficient of the squared term i

n the parabola's equation?

1 answer:

denis23 [38]3 years ago

4 0

Answer:

$y=a(x+2)^{2} -3\\-2=a(-5+2)^{2} -3\\\frac{-2+3}{9} =a\\a=\frac{1}{9} \\$

Step-by-step explanation:

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neonofarm [45]

Answer:

Part a) The area of the swimming pool is $70.2\ m^2$

Part b) The total area of the swimming pool and the playground is $105.3\ m^2$

Step-by-step explanation:

Part a) Find the area of the swimming pool

we know that

The area of the swimming pool is

$A=LW$

where

L is the length side

W is the width side

we have

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substitute the values

$A=(9.75)(7.2)$

$A=70.2\ m^2$

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we know that

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To obtain the total area of the swimming pool and the playground, adds the area of the swimming pool and the area of the playground

so

$70.2\ m^2+35.1\ m^2=105.3\ m^2$

therefore

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