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Illusion [34]
3 years ago
10

Need help with this math problem asap, please help 5 POINT Reward!

Mathematics
1 answer:
arsen [322]3 years ago
8 0

Answer is C.

Multiply the numerator and denominate by 3 - √5


Hope it helps.

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The recursive rule for a sequence is shown.an=an−1+9a1=21 what is the explicit rule for this sequence?
bixtya [17]

Answer:

Meaning of Explicit rule , is the general rule for a sequence.

The given sequence is defined as,

a_{n}=a_{n-1}+9a_{1}-21----(1)

Common Difference(d) of an airthmetic Sequence= N th term - (N-1) th term

                                 =a_{n}-a_{n-1}\\\\=a_{n-1}-a_{n-2}                                            

Equation 1 can be written as,

a_{n}-a_{n-1}=9 a_{1}-21\\\\ d =9a_{1}-21

General rule or explicit rule for this sequence is given as:

a_{n}=a_{1} +(n-1)d\\\\a_{n}=a_{1}+(n-1)(9a_{1}-21)\\\\a_{n}=a_{1}+9na_{1}-21 n-9a_{1}+21\\\\a_{n}=-8a_{1}+21+n(9a_{1}-21)

6 0
3 years ago
Help plss i need help
andrew11 [14]
It’s b. you divide by 5 on both sides and at the end you’ll get x= 6
3 0
3 years ago
Please help with question tagged below
zmey [24]

Answer:

1/3

Step-by-step explanation:

3×x=1

x= 1/3

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Joseph, Pedro, Samuel, and David leave their backpacks by the classroom door at the start of class. When the fire alarm rings th
aev [14]

\huge\pink{Answer}

3/4 is the probability

3 0
2 years ago
Solve xy - 7=k for x,
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Answer:

x= k/y + 7/y

Step-by-step explanation:

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