3 years ago

What is the solution of log3x − 5 16 = 2?

Mathematics

1 answer:

Pani-rosa [81]3 years ago

5 0

X equals to 518/3 which equals to 172.6

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First five term for An=n^2-2n

densk [106]

First 5 terms are: -1,0,3,8,15

Step-by-step explanation:

we will put n=1,2,3,4,5 to find first 5 terms of the sequence

Explicit formula for sequence is:

$a_n = n^2-2n$

Putting n=1

$a_1 = (1)^2-2(1)\\= 1-2\\= -1$

Putting n=2

$a_2 = (2)^2-2(2)\\= 4 - 4 \\=0$

Putting n=3

$a_3 = (3)^2-2(3)\\= 9-6\\= 3$

Putting n=4

$a_4 = (4)^2 - 2(4)\\= 16-8 \\= 8$

Putting n=5

$a_5 = (5)^2-2(5)\\= 25 - 10\\= 15$

Hence,

First 5 terms are: -1,0,3,8,15

Keywords: Arithmetic sequence, Common difference

Learn more about arithmetic sequence at:

#LearnwithBrainly

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3 years ago

Simplify the expression 2(x - 5)

timofeeve [1]

Answer:

brainliest plsss

Step-by-step explanation:

2(x−5)

=(2)(x+−5)

=(2)(x)+(2)(−5)

=2x−10

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3 years ago

Work out the area of this circle. Take pie to be 3.142 and give your answer to 2 decimal places.

yan [13]

Answer:

Work out the area of this circle. Take pie to be 3.142 and give your answer to 2 decimal places.

Step-by-step explanation:

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The 3rd term of a geometric series is 18 and 15th term is 162<br><br><br>

Basile [38]

88............................

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The sales tax in your city is 4.4%, and an item costs $3, before tax.

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