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Alik [6]
4 years ago
10

Ruby is visiting a wildlife center to gather information for her term paper. The center has a circular pond with a diameter of 2

0 meters. What is the approximate area of the pond?
Mathematics
2 answers:
pogonyaev4 years ago
7 0

Answer:

Area of pond = 314 meter².

Step-by-step explanation:

Given  : The center has a circular pond with a diameter of 20 meters.

To find : What is the approximate area of the pond.

Solution: We have given  diameter =  20 meters.

Radius = \frac{Diameter}{2}.

Radius =  \frac{20}{2}.

Radius = 10 meter .

Area of circular pond = pi ( radius) ².

Area of pond = 3.14  (10) ².

Area of pond = 3.14 * 100.

Area of pond = 314 meter².

Therefore, Area of pond = 314 meter².

Sphinxa [80]4 years ago
6 0
314 meters because the equation for the area of a circle is A = pi r squared
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Drag the tiles to the correct boxes to complete the pairs.
Elza [17]

Answer:

Part 1)  -7 →  \dfrac{y^2-y+6}{-2(y+7)}  

Part 2) 3/2 → \dfrac{y^2-2y+1}{2y-3} 

Part 3) 1  → \dfrac{5y^2-6y+1}{-5(y-1)}

Part 4) -1/4 → \dfrac{y(y+5)}{4y+1}

Step-by-step explanation:

<u><em>The complete question in the attached figure</em></u>

we know that

To find out the non permissible replacements for y, equate the denominator of each expression equal to 0.

step 1    

we have

\dfrac{y^2-2y+1}{2y-3}

Equate (2y-3) equal to 0.

2y-3=0

solve for y

Adds 3 both sides.

2y=3

Divide both sides by 2.

y=\dfrac{3}{2}

therefore

3/2 is the non permissible replacement for y.

step 2

we have

\dfrac{y(y+5)}{4y+1}

Equate (4y+1) equal to 0.

4y+1=0

Subtract 1 both sides

4y=-1

Divide by 4 both sides

y=-\dfrac{1}{4}

therefore

-1/4 is the non permissible replacement for y.

step 3

we have

\dfrac{5y^2-6y+1}{-5(y-1)}

Equate -5(y-1) equal to 0.

-5(y-1)=0

Divide by -5 both sides

y-1=0

Adds 1 both sides

y=1

therefore

1 is the non permissible replacement for y.

step 4

we have

\dfrac{y^2-y+6}{-2(y+7)}

Equate -2(y+7) equal to 0.

-2(y+7)=0

Divide by -2 both sides

y+7=0

Subtract 7 both sides

y=-7

therefore

-7 is the non permissible replacement for y

7 0
3 years ago
GD is a diameter of circle C.
Airida [17]

Answer: 231

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Help me with this question pleaseeee!!!
Butoxors [25]
We have that
the measure of angle ∅=7*pi/6
the measure of its reference angle is?
remember that pi=180°
then 
7*pi/6=7*180/6=210°------------> III Quadrant
Part A) its reference angle is 210°-180°=30°
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5 0
3 years ago
Find a gradient of a line that is parallel and perpendicular to this line with this gradient of -2
yulyashka [42]

a gradient of a line that is parallel and perpendicular to this line with this gradient of -2

Gradient is the slope

So slope of the line =-2

Slope of parallel line is equal to the slope of the line

So slope of parallel line = -2

Slope of perpendicular line is equal to negative reciprocal of slope of the line

We know slope of line = -2

Negative reciprocal = \frac{1}{2}

So , Slope of perpendicular line= \frac{1}{2}

7 0
3 years ago
Pls help me I think I’m wrong 10x 1/4
zmey [24]

Answer:

2.5

Step-by-step explanation:

10/1  * 1/4 = 2.5

6 0
3 years ago
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