How many seconds did the sparkles stay in the air? f(x)=81-x^2

Direction: Opens Down

Vertex:  

(

0

,

81

)

(0,81)

Focus:  

(

0

,

323

4

)

(0,3234)

Axis of Symmetry:  

x

=

0

x=0

Directrix:  

y

=

325

4

y=3254

Select a few  

x

x

values, and plug them into the equation to find the corresponding  

y

y

values. The  

x

x

values should be selected around the vertex.

Tap for more steps...

x

y

−

2

77

−

1

80

0

81

1

80

2

77

xy-277-180081180277

Graph the parabola using its properties and the selected points.

Direction: Opens Down

Vertex:  

(

0

,

81

)

(0,81)

Focus:  

(

0

,

323

4

)

(0,3234)

Axis of Symmetry:  

x

=

0

x=0

Directrix:  

y

=

325

4

y=3254

x

y

−

2

77

−

1

80

0

81

1

80

2

77

xy-277-180081180277

f

(

x

)

=

8

1

−

x

2

?

?

f(x)=81-x2??

f

(

x

)

=

81

−

x

2

x

?

f(x)=81-x2x?

f

(

x

)

=

81

−

x

2

x

2

?

f(x)=81-x2x2?

f

(

x

)

=

81

−

x

2

x

3

?

f(x)=81-x2x3?

(

)

|

[

]

√



≥







π



7

8

9

Direction: Opens Down

Vertex:  

(

0

,

81

)

(0,81)

Focus:  

(

0

,

323

4

)

(0,3234)

Axis of Symmetry:  

x

=

0

x=0

Directrix:  

y

=

325

4

y=3254

Select a few  

x

x

values, and plug them into the equation to find the corresponding  

y

y

values. The  

x

x

values should be selected around the vertex.

Tap for more steps...

x

y

−

2

77

−

1

80

0

81

1

80

2

77

xy-277-180081180277

Graph the parabola using its properties and the selected points.

Direction: Opens Down

Vertex:  

(

0

,

81

)

(0,81)

Focus:  

(

0

,

323

4

)

(0,3234)

Axis of Symmetry:  

x

=

0

x=0

Directrix:  

y

=

325

4

y=3254

x

y

−

2

77

−

1

80

0

81

1

80

2

77

xy-277-180081180277

f

(

x

)

=

8

1

−

x

2

?

?

f(x)=81-x2??

f

(

x

)

=

81

−

x

2

x

?

f(x)=81-x2x?

f

(

x

)

=

81

−

x

2

x

2

?

f(x)=81-x2x2?

f

(

x

)

=

81

−

x

2

x

3

?

f(x)=81-x2x3?

(

)

|

[

]

√



≥







π



7

8

9

Direction: Opens Down

Vertex:  

(

0

,

81

)

(0,81)

Focus:  

(

0

,

323

4

)

(0,3234)

Axis of Symmetry:  

x

=

0

x=0

Directrix:  

y

=

325

4

y=3254

Select a few  

x

x

values, and plug them into the equation to find the corresponding  

y

y

values. The  

x

x

values should be selected around the vertex.

Tap for more steps...

x

y

−

2

77

−

1

80

0

81

1

80

2

77

xy-277-180081180277

Graph the parabola using its properties and the selected points.

Direction: Opens Down

Vertex:  

(

0

,

81

)

(0,81)

Focus:  

(

0

,

323

4

)

(0,3234)

Axis of Symmetry:  

x

=

0

x=0

Directrix:  

y

=

325

4

y=3254

x

y

−

2

77

−

1

80

0

81

1

80

2

77

xy-277-180081180277

f

(

x

)

=

8

1

−

x

2

?

?

f(x)=81-x2??

f

(

x

)

=

81

−

x

2

x

?

f(x)=81-x2x?

f

(

x

)

=

81

−

x

2

x

2

?

f(x)=81-x2x2?

f

(

x

)

=

81

−

x

2

x

3

?

f(x)=81-x2x3?

(

)

|

[

]

√



≥







π



7

8

9

Direction: Opens Down

Vertex:  

(

0

,

81

)

(0,81)

Focus:  

(

0

,

323

4

)

(0,3234)

Axis of Symmetry:  

x

=

0

x=0

Directrix:  

y

=

325

4

y=3254

Select a few  

x

x

values, and plug them into the equation to find the corresponding  

y

y

values. The  

x

x

values should be selected around the vertex.

Tap for more steps...

x

y

−

2

77

−

1

80

0

81

1

80

2

77

xy-277-180081180277

Graph the parabola using its properties and the selected points.

Direction: Opens Down

Vertex:  

(

0

,

81

)

(0,81)

Focus:  

(

0

,

323

4

)

(0,3234)

Axis of Symmetry:  

x

=

0

x=0

Directrix:  

y

=

325

4

y=3254

x

y

−

2

77

−

1

80

0

81

1

80

2

77

xy-277-180081180277

f

(

x

)

=

8

1

−

x

2

?

?

f(x)=81-x2??

f

(

x

)

=

81

−

x

2

x

?

f(x)=81-x2x?

f

(

x

)

=

81

−

x

2

x

2

?

f(x)=81-x2x2?

f

(

x

)

=

81

−

x

2

x

3

?

f(x)=81-x2x3?

(

)

|

[

]

√



≥







π



7

8

9



the multiples of 15 are 15, 30,45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195,   210, 225, 240, 255, 270, 285, 300, 315, 330, 345, 360, 375,   390, 405, 420, 435, 450, 465, 480, 495, 510, 525, 540, 555, 570, 585, 600, 615, 630, 645, 660, 675, 690, 705, 720, and 735.

the factors of 15 are 1, 3, 5, and 15.

hope that , fam!

-une, your fren : )

the total estimated nappy use.=10,500,000

step-by-step explanation:

given that on an average the average baby uses 3528 napkins.

in a particular year 2014, the number of births were 299697 in new south wales.

rounding off the number of births to the nearest hundred thousand we have

no of birtsh = 300000

also rounding off the average usage to nearst thousand we get

average use of a baby = 3500

hence total number of nappy estimated to be used = 3500x300000

= 10,500,000

answer is 10,500,000 nappies