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Contact [7]
3 years ago
10

Please help me! I don't know

Mathematics
1 answer:
Anvisha [2.4K]3 years ago
5 0
(B.) I think I don’t know
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If x is a real number, find 49x^2+14x(19-7x)+(19-7x)^2.
SpyIntel [72]
19^2 or 361 is the answer to the equation
8 0
3 years ago
DJ Giovanni is making a playlist for a friend; he is trying to decide what 12 songs to play and in what order they should be pla
Elena L [17]

Answer:

5.78×10¹⁵

Step-by-step explanation:

The playlist has 12 songs, and he wants the same number of songs for each genre, so he must pick 4 songs per genre.

The number of ways he can choose 4 country songs (ignoring the order) is ₂₂C₄ = 7315.

The number of ways he can choose 4 reggae songs (ignoring the order) is ₁₁C₄ = 330.

The number of ways he can choose 4 pop songs (ignoring the order) is ₅C₄ = 5.

The total number of combinations is 7315 × 330 × 5 = 1.21×10⁷.

Once he has his 12 songs selected, the number of ways he can arrange them is ₁₂P₁₂ = 12! = 4.79×10⁸.

So the total number of possible playlists is:

(1.21×10⁷) × (4.79×10⁸) = 5.78×10¹⁵

4 0
3 years ago
The quantity x minus 3 divided by y
anygoal [31]

Answer:

x-3/y

Step-by-step explanation:

thats the expression

8 0
3 years ago
You practice playing your guitar every day. You spend 15 minutes practicing chords and the rest of the time practicing a new son
Black_prince [1.1K]

Answer:

<h2>x=(y-105)/7</h2>

Step-by-step explanation:

Given that the total time taken to practice is given by the expression as

y=7(15+x)

Simplifying the expression we have

y=105+7x

Solving for x (that is making x subject of formula we have)

7x=y-105

Divide both sides by 7 we have

x=(y-105)/7

Therefore the expression is

x=(y-105)/7

5 0
3 years ago
I will give brainliest answer for someone to answer this and no links just an answer
diamong [38]

Answer:

5,957

Step-by-step explanation:

if you do length × width × height then add 6 then add 11 you'll get this answer I think

5 0
3 years ago
Read 2 more answers
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