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omeli [17]
3 years ago
9

What is the circumference of a circle with a diameter of 6.2cm?

Mathematics
1 answer:
tekilochka [14]3 years ago
8 0
The circumference of a circle with a diameter of 6.2cm is 19.48cm. round that to the nearest tenth, and you'll get 19.5cm.
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10-^4 in standard form
Harrizon [31]
Question: 10^-4 in standard form

Work:

To write 10^-4 in standard form you just simplify the equation.

10^-4 equals 1/10000 or 0.0001

Final Answer:

10^-4 equals 1/10000 or 0.0001
6 0
3 years ago
Please find the square roots of the following complex number.
Nana76 [90]

Hey there,

First, find the square root of the given equation.

\sqrt{z}=\sqrt{81(\text{cos}(\frac{4\pi}{9})+i\text{sin}(\frac{4\pi}{9})}\\=9\text{cos}\frac{1}{2}(2k\pi+(\frac{4\pi}{9}))+i\text{sin}\frac{1}{2} (2k\pi+(\frac{4\pi}{9}))

Keep in mind that this is solved for k = 0 and 1.

Second, simplify.

=9\text{cos}(\frac{2\pi}{9})+i\text{sin}(\frac{2\pi}{9})~\text{or}~9\text{cos}(\frac{11\pi}{9})+i\text{sin}(\frac{11\pi}{9})

Best of Luck!

6 0
3 years ago
a farm, in the shape of an isosceles trapezoid, is putting up fences on its diagonals. If 1 fence has sixteen 9 - foot segments,
iragen [17]

Answer:

18

Step-by-step explanation:

16 × 9 = 8 × x

x = 18

3 0
3 years ago
This graph represents which function?
il63 [147K]

Answer:

A

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4 0
3 years ago
Solve the system of two equations 2y=8 and 15y=2x-4
damaskus [11]
To find y, divide the first equation by 2.
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To find x, use that value for y in the second equation. Add 4, then divide by 2.
  15·4 = 2x -4
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  64/2 = x = 32

The solution is (x, y) = (32, 4).

8 0
3 years ago
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