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3 years ago

Which variable expression matches the word phrase?

1 answer:

6 0

1. sum of 12 and quotient of 9 and a number
12 + (9 divided by y)

2. difference of 12 and product of 9 and a number
12 - (9 * y) or 12 - 9y

3. difference of 12 and quotient of 9 and a number
12 - (9 divided by y)

4. 12 more then the quotient of 9 and a number
12 + (9 divided by y)

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Please help!! Please give step by step so i can understand

miss Akunina [59]

Answer:

p = - 14

Step-by-step explanation:

Using the rules of exponents

$a^{m}$ ÷ $a^{n}$ = $a^{(m-n)}$

$(a^{m}) ^{n}$ = $a^{mn}$

Note 81 = 9² and 729 = 9³

Given

$(81)^{-4}$ ÷ $(729)^{2-p}$

= $(9^{2}) ^{-4}$ ÷ $(9^{3}) ^{2-p}$

= $9^{-8}$ ÷ $9^{6-3p}$

= $9^{-8-(6-3p)}$

= $9^{-8-6+3p}$

= $9^{3p-14}$

Thus

$9^{3p-14}$ = $9^{4p}$

Since bases on both sides are equal then equate the exponents

4p = 3p - 14 ( subtract 3p from both sides )

p = - 14

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3 years ago

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Nookie1986 [14]

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3 years ago

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IgorLugansk [536]

Answer:

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Step-by-step explanation:

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3 years ago

15 - 10 = _____(3 - 2) PLEASE HELP ON THIS IS DUE TODAY

telo118 [61]

Answer:

15 - 10 = 5(3 - 2)

its 5

Step-by-step explanation:

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3 years ago

Read 2 more answers