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andrey2020 [161]
3 years ago
9

DJ Davon is making a playlist for a website; he is trying to decide what 15 songs to play and in what order they should be playe

d. If he has his choices narrowed down to 12 hip-hop, 9 rock, and 6 blues songs, and he wants to play an equal number of hip-hop, rock, and blues songs, how many different playlists are possible? Express your answer in scientific notation rounding to the hundredths place.
Mathematics
1 answer:
Evgesh-ka [11]3 years ago
7 0

Answer:

.

Step-by-step explanation:

bc it is and im right haha

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How many ways can the words in d-r-a-g-o-n-f-l-y be arranged
GarryVolchara [31]

Answer:

362880 ways

Step-by-step explanation:

The word dragonfly has 9 different letters.

So, to find how many ways this word can be arranged, we just need to calculate the factorial of 9:

First letter has 9 possibilities

Second letter has 8 possibilities (one used)

Third letter has 7 possibilities (two used), and so on.

So the number of ways is:

9*8*7*6*5*4*3*2*1 = 362880 ways

7 0
3 years ago
Which of the following is equivalent to 34?<br> A) 7<br> B) 12<br> C) 64<br> D) 81
Mamont248 [21]
None of these are equivalent to 34; they're all different values.

6 0
3 years ago
If an object is projected vertically upward from ground level with an initial velocity of 320 ft/sec, then its distance s above
PolarNik [594]
8<t<12 would be your answer buddy :)
6 0
3 years ago
Read 2 more answers
A candle in the shape of a circular cone has a base of radius r and a height of h that is the same length as the radius. which e
ladessa [460]

Answer:

\frac{r(1-\sqrt{2})}{-3}

Step-by-step explanation:

Volume of cone = \frac{1}{3} \pi r^{2} h

Since we are given that a circular cone has a base of radius r and a height of h that is the same length as the radius

                          = \frac{1}{3} \pi r^{2} \times r

                          = \frac{1}{3} \pi r^{3}

Surface area of cone including 1 base = \pi r^{2} +\pi\times r \times \sqrt{r^2+h^2}

Since r = h

So, area = \pi r^{2} +\pi\times r \times \sqrt{r^2+r^2}

              = \pi r^{2} +\pi\times r \times \sqrt{2r^2}

              = \pi r^{2} +\pi\times r^2 \times \sqrt{2}

Ratio of volume of cone to its surface area including base :

\frac{\frac{1}{3} \pi r^{3}}{\pi r^{2} +\pi\times r^2 \times \sqrt{2}}

\frac{\frac{1}{3}r}{1+\sqrt{2}}

\frac{r}{3(1+\sqrt{2})}

Rationalizing

\frac{r}{3(1+\sqrt{2})} \times \frac{1-\sqrt{2}}{1-\sqrt{2}}

\frac{r(1-\sqrt{2})}{-3}

Hence the ratio the ratio of the volume of the candle to its surface area(including the base) is \frac{r(1-\sqrt{2})}{-3}

8 0
3 years ago
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Wright the expression 6a - 2 (a-1) in simplest form
vovikov84 [41]
6a-2(a-1)
6a-2a-2
4a-2
I think it is 4a-2
6 0
4 years ago
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