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guajiro [1.7K]
3 years ago
11

Can anyone plz explain the permutation formula in math? and plz make it simple because I'm just a 7th grade student​

Mathematics
1 answer:
mixas84 [53]3 years ago
7 0

Answer:

To calculate permutations, we use the equation nPr, where n is the total number of choices and r is the amount of items being selected. To solve this equation, use the equation nPr = n! / (n - r)!.

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Alekssandra [29.7K]

Answer:

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6 0
3 years ago
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URGENT EXPLANATION AND SOLVING
Alex787 [66]
\cfrac{a}{\sin(a)} = \cfrac{b}{\sin(b)} 


\cfrac{31}{\sin(42)} = \cfrac{37}{\sin(x)} 


31\sin(x) = 37 \sin(42)

\sin(x) = \cfrac{37 \sin(42) }{31}

x = \sin^{-1}(\cfrac{37 \sin(42) }{31} )

x = 53 \textdegree

Answer: 53°
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3 years ago
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Answer:

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3 0
2 years ago
Find the equivalent exponential expression. [(-4)^5]^3
Sunny_sXe [5.5K]

Answer:

-4^{15}

Step-by-step explanation:

Given expression:

\left[(-4)^5\right]^3

\textsf{Apply exponent rule} \quad (a^b)^c=a^{bc}:

\implies (-4)^{(5 \times 3)}

\implies (-4)^{15}

\textsf{Apply exponent rule} \quad (-a)^n=-a^n,\:\: \textsf{ if }n \textsf{ is odd}:

\implies -4^{15}

4 0
2 years ago
What are the solutions to the equation x2 + 4x – 12 = 0?
Alik [6]

Answer:

Step-by-step explanation:

X=2,-6

8 0
2 years ago
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