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3 years ago

The diameter of a circle is 4 centimeters. What is the circle's circumference?

Mathematics

1 answer:

Hitman42 [59]3 years ago

4 0

Answer:

12.56cm.

Step-by-step explanation:

Given that the diameter of a circle is 4 centimeters

The equation to find the circumference would be C=πd

C=3.14x4

=12.56

The circumference of the circle would be 12.56cm.

Hope this helps :)

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Answer:

K=13

Step-by-step explanation:

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3 years ago

From a point 80 m from the base of a tower, the angle of elevation to the top of the tower is 28°. How tall is the tower?

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Step-by-step explanation:

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3 years ago

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What is the volume of the cube?

DENIUS [597]

Answer:

d) 343 cm^3

Step-by-step explanation:

Because you are talking about volume of a cube, that means all sides are equal. The equation for volume is length x width x height. Since all sides of the cube are equal and you are given the height, 7 cm, you will need to multiply 7 three times. Your equation would be 7 x 7 x 7. Then, 7 x 7 is 49 and 49 x 7 is 343. Don't forget, because we are talking volume, to put the cubed. So, your answer is 343 cm^3.

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3 years ago

There are 3 red chips and 2 blue chips. If they form a certain color pattern when arranged in a row, for example RBRRB, how many

svp [43]

Answer:

Option A - 10

Step-by-step explanation:

Given : There are 3 red chips and 2 blue chips. If they form a certain color pattern when arranged in a row, for example RBRRB.

To find : How many color patterns are possible?

Solution :

Total number of chips = 5

So, 5 chips can be arranged in 5! ways.

There are 3 red chips and 2 blue chips.

So, choosing 3 red chips in 3! ways

and choosing 2 blue chips in 2! ways.

As changing the places of similar chip will not create new pattern.

The total pattern is given by,

$T=\frac{5!}{3!\times 2!}$

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3 years ago

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777dan777 [17]

Answer:

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Explanation:

You are distributing the 3 to the parenthesis to get 12x+21 =43

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