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11111nata11111 [884]
3 years ago
6

A square has sides of 7.5 cm, measured correctly to 1 d. p.

Mathematics
1 answer:
Luba_88 [7]3 years ago
6 0

Answer:

1.45cm

Step-by-step explanation:

I just added

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A conical tent has a radius of 10.4 ft and a height of 8.4 ft. Doubling which dimensions will quadruple the volume of the tent?
avanturin [10]

Answer: Doubling the radius.

Step-by-step explanation:

The volume of a cone can be found with the following formula:

V=\frac{1}{3}\pi r^2h

Where "r" is the radius and "h" is the height of the cone.

Let's find the volume of the conical tent with a radius of 10.4 feet and a height of 8.4 feet.

Identifiying that:

r=10.4\ ft\\\\h=8.4\ ft

You get this volume:

V_1=\frac{1}{3}\pi (10.4\ ft)^2(8.4\ ft)\\\\V_1=951.43\ ft^3

If you double the radius, the volume of the conical tent will be:

V_2=\frac{1}{3}\pi (2*10.4\ ft)^2(8.4\ ft)\\\\V_2=3,805.70\ ft^3

When you divide both volumes, you get:

\frac{3,805.70\ ft^3}{951.43\ ft^3}=4

Therefore, doubling the radius will quadruple the volume of the tent.

5 0
3 years ago
Can someone please help me
shutvik [7]
First off you need to convert the numbers into mixed numbers.
1 3/7 goes to 10/7
3 2/3 goes to 11/3

Then you multiply the numerators together:
10 * 11 = 110

Do the same for the denominators:
3 * 7 = 21

Then place it into a fraction and you make the fraction positive because the signs at the start are the same:
110/21

Then you can turn it into a proper fraction:
5 5/21
3 0
3 years ago
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