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Korvikt [17]
3 years ago
9

How much string would you need to go around the bottom of a hat shaped like a cone if the radius is 4 inches? (Use 3.14 for π)

Mathematics
2 answers:
Allushta [10]3 years ago
6 0

Answer:

The amount of string needed is 25.1 inch.

Step-by-step explanation:

The amount of string needed to go around is equal to the circumference of that area. As the bottom of cone is to go around by string, the circumference will provide us with the right amount.

           radius (r) = 4 inch.

                      π = 3.14

circumference of circle (C) = 2πr

                                          = 2 *π *r

                                          = 2 *3.14 *4

                                          = 25.1 inch.

Hence 25.1 inch string will go around the cone easily.

krek1111 [17]3 years ago
6 0

Answer:

The answer you are looking for is B) 25.12

Step-by-step explanation:

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8 0
2 years ago
Which of the following is the estimated sum of fifty-five, sixty, and sixty-five using compatible numbers?
SVEN [57.7K]

C. 190

Round each number

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3 0
3 years ago
(2 + i)(3 - i)(1 + 2i)(1 - i)(3 + i)
anygoal [31]

Answer:

<h2>50+50i</h2>

Step-by-step explanation:

Given the expression (2 + i)(3 - i)(1 + 2i)(1 - i)(3 + i), we are to take the product of all the complex values. We must note that i² = -1.

Rearranging the expression [(3 - i)(3 + i)] [(2 + i)(1 - i)](1 + 2i)

On expansion

(3 - i)(3 + i)

=  9+3i-3i-i²

= 9-(-1)

= 9+1

(3 - i)(3 + i) = 10

For the expression (2 + i)(1 - i), we have;

(2 + i)(1 - i)

= 2-2i+i-i²

= 2-i+1

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Multiplying 3-i with the last expression (1 + 2i)

(2 + i)(1 - i)(1 + 2i)

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Hence,  (3 - i)(3 + i)(2 + i)(1 - i)(1 + 2i) is equivalent to 50+50i

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Answer:

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2 years ago
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