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Alex Ar [27]
1 year ago
12

Cone B is the image of cone A after dilation by a scale factor of \frac{1}{2}

Mathematics
1 answer:
Bogdan [553]1 year ago
4 0

The surface area of cone B is 10 km², and Cone B is the image of cone A after dilation by a scale factor of 1/2

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more numbers and variables.

Cone B is the image of cone A after dilation by a scale factor of 1/2, hence:

Surface area of cone B = 40 km² * (1/2)² = 10 km²

The surface area of cone B is 10 km², and Cone B is the image of cone A after dilation by a scale factor of 1/2

Find out more on equation at: brainly.com/question/2972832

#SPJ1

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Oliver has 3 times as many rocks in his collection as Katie. Then Oliver collected 75 more rocks and Katie collected 105 more ro
Evgesh-ka [11]

Answer:

The answer to your question is Katie had 15 rocks and Oliver 45 rocks.

Step-by-step explanation:

Conditions

Katie has x amount of rocks

Oliver has 3x amount of rocks

The final amount of rocks

                                    Oliver = 3x + 75

                                     Katie = x + 105

Now, they have the same amount of rocks, then we can equal both equations

                                   3x + 75 = x + 105

Solve for x

                                     3x - x = 105 - 75

                                           2x = 30

                                             x = 30/2

                                             x = 15

Conclusions

At first Katie had 15 rocks and Oliver had 3(15) = 45 rocks

5 0
2 years ago
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Identify the domain of this relation. {(7,9), (4,6), (8, -10), (5, -7)}
IrinaK [193]
The domain is 7,4,8,5
3 0
3 years ago
What is The answer to this equation -9•(5j+k)
vlada-n [284]

Answer:

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Step-by-step explanation:

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2 years ago
What is the volume of the sphere, rounded to the nearest cubic foot?
Zielflug [23.3K]

Given:

Radius = 5 ft

To find:

The volume of the sphere

Solution:

Volume of the sphere:

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$V=\frac{4}{3}\times 3.142 \times 5^3

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$V=524

The volume of the sphere is 524 ft³.

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3 years ago
If a figure has five vertices and eight edges, how many faces does it have?
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I believe it has 5 faces. 
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