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2 years ago

Which one of these numbers do not belong 21 15 6 16 27

Mathematics

2 answers:

NNADVOKAT [17]2 years ago

6 0

That would be 16 because all the others are multiples of 3.

ANEK [815]2 years ago

6 0

Answer:

Step-by-step explanation:

21 divided by 3 is 7

15 divided by 3 is 5

6 divided by 3 is 2

27 divided by 3 is 9

and 16 divided by 3 is 5.33... which isn't similar to the ones above

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Which statement about an extraneous solution is not correct? Select all that apply.

horsena [70]

Answer:

It comes from correct solution steps and is not a valid solution of the equation.

Step-by-step explanation:

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2 years ago

What does s equal <br> 7(s + 68) = 56

AlekseyPX

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2 years ago

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What is the value of a when we rewrite 8^x as a^-x/9

Andre45 [30]

Answer:

$a = \frac{1}{134217728}$

Step-by-step explanation:

Given

$8^x = a^{-x/9}$

Required

Find a

Take log of both sides

$log(8^x) = log(a^{-x/9})$

Apply law of logarithm

$x\ log(8) = (-x/9) log(a)$

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Multiply both sides by -9

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Apply law of logarithm

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Cancel out log

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$a = 8^{-9}$

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2 years ago

Estimate <br> 72 x 362 / 0.49

andrew11 [14]

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slavikrds [6]

Answer:

Step-by-step explanation:

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