3 years ago

Please help me answer this math question

Mathematics

1 answer:

Evgesh-ka [11]3 years ago

4 0

Step-by-step explanation:

hope this helps you mate

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Can someone help me here NONSENSE=REPORT<br><br>topic: Circles and its Concept

Zina [86]

Detailed Answer:

Diameter = Radius * 2

Radius = Diameter/2

a) 64cm

r = 32 cm

Diameter = 32 * 2 = 64cm

b) 25.2 m

r = 12.6 m

Diameter = 12.6 * 2 = 25.2 m

c) 29.5 in

r = 14 3/4 = 14.75

Diameter = 14.75 * 2 = 29.5 in

d) 64 cm

r = √32 cm^2 = 32 cm

Diameter = 32 * 2 = 64 cm

e) 49.32 ft

r = 24.66 ft

Diameter = 24.66 * 2 = 49.32 ft

8 0

3 years ago

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The mean age of 5 people in a room is 40 years. A person enters the room. The mean age is now 36. What is the age of the person

Igoryamba

Answer:

$\boxed{\sf \ \ \ age = 16 \ \ \ }$

Step-by-step explanation:

Hello,

as the mean age of 5 people is 40

it means that the sum of the 5 ages is 40*5=200

now a person enters the room, let's note x his age

the new mean is

$\dfrac{200+x}{6}=36$

$200+x=6*36=216\\ x = 216-200=16\\$

So the age of the new person is 16

hope this helps

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3 years ago

Find the missing measure for the cone. Round your answer to the nearest tenth. Use 3.14 for π.

astra-53 [7]

Answer:

h = 3 cm

Step-by-step explanation:

Given that,

Diameter, d = 6 cm

Radius, r = 3 cm

Volume of the cone, V = 28.26 cm³

The formula for the volume of a cone is given by :

$V=\dfrac{1}{3}\pi r^2 h\\\\h=\dfrac{3V}{\pi r^2}\\\\h=\dfrac{3\times 28.26}{3.14\times 3^2}\\\\h=3\ cm$

So, the height of the cone is equal to 3 cm.

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3 years ago

Please help me ill give you the crown thing if its right

Montano1993 [528]

Answer:

Step-by-step explanation:

3/5 = x/25

x = 15

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Which of the following numbers is between -3/4 and 5/8?

cricket20 [7]

b is between those two nu,ners

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Please help me answer this math question​

Please help me answer this math question