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seropon [69]
3 years ago
10

Find the area of the shaded region ​

Mathematics
1 answer:
tatiyna3 years ago
4 0

Answer:

9.82 inches²

Step-by-step explanation:

both areas are equally sized, so they are both half of the whole circle.

circle area : pi × r²

half of the circle area is therefore pi × r² / 2

the picture gives us the diameter of the circle, the radius is half of the diameter.

=> r = 5/2 = 2.5

=> shaded area = pi × r² / 2 = pi × (2.5)² / 2 = 9.82 inches²

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Airida [17]

Answer:

radius is 3.38cm

Step-by-step explanation:

Note: the volume of a cone is given as

V= 1/3 \pi r^2 h

Step one:

Given Information

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height= 2.5cm

Required

The radius of the cone

Step two:

substituting our data into the expression for the volume of a cone we can then solve for the radius r

30=1/3 *3.142*r^2 * 2.5\\\\30=1/3*7.855r^2\\\\30=2.62r^2\\\\

divide both sides by 2.62

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7 0
3 years ago
What is 6 plus 12 times 8-3
9966 [12]

Answer:

99

Step-by-step explanation: Use PEMDAS

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Hope this helped!

4 0
3 years ago
Find an equation for the line tangent to the circle x^2 +y^2=25 at the point (3, -4)
Lostsunrise [7]
Hello : 
the center of this cercle is : O( 0, 0)
calculate the slope  m of the line : OA    .. A (3,-4)
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m= -4/3
if : k the slope of the tangent : k×m = -1   (the tangent perpendiclar of : OA)
k× (-4/3) = -1
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7 0
4 years ago
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faltersainse [42]
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4 0
3 years ago
Read 2 more answers
Complete each statement from the information given and state the reasons and the triangle criterion you used.
TiliK225 [7]

Answer:

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Step-by-step explanation:

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A rule for determining Triangle Congruency is AAS. If two angles and a side of a triangle are equal to one of another triangle, the triangles are congruent.

5 0
4 years ago
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