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Whitepunk [10]
2 years ago
11

The radius of a circular rug is 4 feet. How much ribbing will you need to buy to go around the rug? Use 3 for Ñ

Mathematics
1 answer:
d1i1m1o1n [39]2 years ago
3 0

Answer:

24ft

Step-by-step explanation:

So you need to find the circumfrnce and I am 3 for pi

so 3(4)2=24ft

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What is the missing side length in the image below?
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2 years ago
(6 - 1) + (3m)i = -12 + 27i
Yanka [14]

Answer:

We want to solve the equation:

(6 - 1) + (3m)i = -12 + 27i

Where m is a complex number.

first, we can rewrite this as:

5 + 3*m*i = -12 + 27*i

3*m*i = -12 - 5 + 27*i

3*m*i = -17 + 27*i

And we can write m as:

m = a + b*i

Replacing that in the above equation we get:

3*(a + b*i)*i = -17 + 27*i

3*a*i + 3*b*i^2 = -17 + 27*i

and we know that i^2 = -1

3*a*i - 3*b = -17 + 27*i

The real part in the left (-3*b) must be equal to the real part in the right (-17)

then:

-3*b = -17

b = -17/-3 = 17/3

And the imaginary part in the left (3*a) must be equal to the imaginary part in the right (27)

then:

3*a = 27

a = 27/3.

Then the value of m is:

m = a + b*i = (27/3)  + (17/3)*i

8 0
3 years ago
Please do all of them correct and quick I will mark brainliest and 10 points ty pls I’m on a time limit
sweet-ann [11.9K]

1: 9pi

2. 18

3. 12pi

4. 672

5. 23.94

6. 10 3/4

7 0
2 years ago
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