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vodomira [7]
3 years ago
8

16ef³÷8e²f=24m²n³_____=2mn2k³+k_____=4k​

Mathematics
1 answer:
hjlf3 years ago
3 0

Answer:

Answer is below

Step-by-step explanation:

16ef³÷8e²f=\frac{2f^{2}}{e}

\frac{24m^{2} n^{3} }{2mn} = 12m n^{2}

\frac{2k^{3} +k}{4k} =\frac{1}{2} k^{2} +\frac{1}{4}

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Factor Xsquared +12x+27
____ [38]

Answer:

(x+3)(x+9)

Step-by-step explanation:

We are given the expression x^2+12x+27

This means that we are looking for two numbers that would add together to give us 12 and multiply to give us 27.

The two numbers that fit this description are 3 and 9.

This means that the factored form of the expression would be

(x+3)(x+9)

3 0
3 years ago
A radio disc jockey has 8 songs on this upcoming hour's playlist: 2 are rock songs, 4 are reggae songs, and 2 are country songs.
mart [117]

Answer:

\displaystyle  \frac{1}{28}

Step-by-step explanation:

we are given 8 songs

2 are <em>rock.</em><em> </em>4 are <em>reggae</em>, 2 are <em>country</em>

we want to figure out the probability of getting both reggae songs

notice that, they aren't replacing thus it's an independent probability

recall that,

\displaystyle \rm P(A  \:  \text{and} \: B) = P(A) \times P(B \mid A)

P(A) represents the chance of getting our subject first time and P(B|A) represents the chance of getting the same subject second time

let's figure out P(A)

we have 2 reggae songs

and total 8 songs

therefore

\displaystyle\rm P(A) =  \frac{2}{8}  =  \frac{1}{4}

let's figure out P(B|A)

since we took a reggae song before now we have only a reggae song

and total 8-1=7

therefore

\displaystyle  \rm P(B\mid A) =  \frac{1}{7}

Altogether

\displaystyle \rm P(A  \:  \text{and} \: B) = \frac{1}{4}  \times  \frac{1}{7}

simplify multiplication:

\displaystyle \rm P(A  \:  \text{and} \: B) = \frac{1}{28}

And we are done!

7 0
3 years ago
The graph of f(x)= 5x is reflected across the x-axis. Write a function g(x) to describe the new graph. g(x)=
devlian [24]

g(x) =  - 5x
This is probably the right answer
5 0
3 years ago
Which expression is equivalent to 1/4(2−5x+6) ?<br> Please answer fast!
Alecsey [184]
If x=3 then 5x3=15-2=13+6=19x1/4=4 3/4 so that means that 2 1/4+2 1/2 could be equivalent

P.S.I just chose 3 because it was the first number to pop into my head
~Mathlete12321~
5 0
3 years ago
Read 2 more answers
Solve x2−4x−12=0 by completing the square. A x=−2 B x=−6 or x=2 C x=−2 or x=6 D x=−6
MrRissso [65]

Answer:

B x=-6

x=2

Step-by-step explanation:

8 0
2 years ago
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