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MrRissso [65]
2 years ago
10

A family room has a circular rug with a radius of 7 m .

Mathematics
1 answer:
irina [24]2 years ago
8 0

Answer:

153.94m²

plz mark me as brainliest :)

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An equation whose variables are polar coordinates is called a ____________
Murljashka [212]
An equation whose variables are polar coordinates is called a polar equation. These equation are characterized by an r as a function an angle. Polar equations can be written in rectangular coordinates by certain relationships. An example of a polar equation would be r = 2sin∅.
4 0
3 years ago
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Write an exponential function for graph that passes through the following points (-3,80);(-1,20)
padilas [110]

Answer:

y

=

4

(

1

2

)

x

Explanation:

An exponential function is in the general form

y

=

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b

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We know the points

(

−

1

,

8

)

and

(

1

,

2

)

, so the following are true:

8

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(

b

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1

)

=

a

b

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=

a

(

b

1

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=

a

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Multiply both sides of the first equation by

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to find that

8

b

=

a

Plug this into the second equation and solve for

b

:

2

=

(

8

b

)

b

2

=

8

b

2

b

2

=

1

4

b

=

±

1

2

Two equations seem to be possible here. Plug both values of

b

into the either equation to find

a

. I'll use the second equation for simpler algebra.

If

b

=

1

2

:

2

=

a

(

1

2

)

a

=

4

Giving us the equation:

y

=

4

(

1

2

)

x

If

b

=

−

1

2

:

2

=

a

(

−

1

2

)

a

=

−

4

Giving us the equation:

y

=

−

4

(

−

1

2

)

x

However! In an exponential function,

b

>

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, otherwise many issues arise when trying to graph the function.

The only valid function is

y

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x

7 0
3 years ago
The two lines graphed below are parallel. How many solutions are there to the system of equations?
coldgirl [10]

Solutions just means the amount of times the lines intersect, so there are no solutions. Since the lines are parallel, they’re going the exact same direction forever and ever, never intersecting. Hope this helps!

6 0
2 years ago
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Can someone tell me what is 8/9+3/5
I am Lyosha [343]
Okay I am going to explain to you and show you how to get the correct answer.

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__________
67/45 is reduced to 1 22/45
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3 years ago
In 1997 there were 11,012 licensed drivers over age 55 involved in fatal crashes. There
san4es73 [151]

Answer:

Step-by-step explanation:

No because there could simply be more older drivers on the road.

8 0
2 years ago
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