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KIM [24]
3 years ago
9

Find the number of permutations in the word CIRCUS.

Mathematics
1 answer:
DerKrebs [107]3 years ago
8 0
If the letters are considered distinct, then the number of permutations is 6!=720.

If we count either C as the same character, then we would be double-counting - to correct this, we would simply divided by the number of ways we can choose C from the available characters, or \dfrac{6!}{2!}=360.
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cos x=g/h

Step-by-step explanation:

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3 years ago
Triangle DEF is a right triangle. If FE=5 and DF=13, find DE.
Nadya [2.5K]

Answer:

13

Step-by-step explanation:

I am amusing you are looking for the hypotenuse since this is middle school.

If you have the legs and are looking for the hypotenuse you use the Pythagorean Theorem a^{2} + b^{2} = c^{2}

The legs are a and b, and the hypotenuse is c

The work would look like this

13^{2} + 5^{2} = c^{2} \\169+25= c^{2} \\194= c^{2} \\\sqrt{194} = \sqrt{c^{2} } \\13.9283883... = c

extra notes

  • I rounded to 13
  • If you didn;t know you cancles exponents with roots

so the c^{2} is cancled by aka \sqrt{c}

Hope this helped :)

4 0
3 years ago
In Exercises 37– 40, BD ⃗ bisects ∠ABC. Find m∠ABD,<br><br>m∠CBD, and m∠ABC.
MrRissso [65]

Answer:

37,  ABD = CBD = 44 degrees, and ABC = 88 degrees

38.  ABD = CBD = 24 degrees, and ABC = 48 degrees

39.  ABD = CBD = 65 degrees, and ABC = 130 degrees

40.  ABD = CBD =67 degrees, and ABC = 134 degrees

Step-by-step explanation:

Recall that when a segment bisects an angle, the angle is divided in equal parts then we have:

37.  

6 x + 14 = 3 x + 29

3 x = 19 - 14 = 15

x = 15/3

x = 5

then ABD = 6 (5) + 14 = 30 + 14 = 44 degrees

CBD must equal ABD , so CBD = 44 degrees

And the total angle ABC = 88 degrees

38.

3 x + 6 = 7 x - 18

24 = 4 x

x = 24/4 = 6

Then ABD = 3 (6) + 6 = 24 degrees. Also CBD = 24 degrees and ABC = 48 degrees

39.

- 4 x + 33 = 2 x + 81

- 6 x = 81 - 33

-6 x = 48

x = - 48/6

x = -8

Then ABD = -4 (-8) + 33 = 32 + 33 = 65 degrees

The also CBD = 65 degrees, and ABC = 130 degrees

40.

8 x + 35 = 11 x + 23

35 - 23 = 11 x - 8 x

12 = 3 x

x = 12/3

x = 4 degrees

Therefore:

ABD = 8 (4) + 35 = 32 + 35 = 67 degrees.

Then also CBD = 67 degrees, and ABC = 134 degrees

3 0
3 years ago
Please solve This:
otez555 [7]

Answer:

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Step-by-step explanation:

8 0
3 years ago
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