3 years ago

Is 81 a multiple of 3

Mathematics

2 answers:

Andrew [12]3 years ago

7 0

Yes because 3 x 27= 81 or 81 / 3= 27.

mixer [17]3 years ago

7 0

Yes, 81 is a multiple of 3

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Find the first six terms of the sequence.<br><br> a1 = -4, an = an-1 + 7

maw [93]

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2 years ago

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tensa zangetsu [6.8K]

Answer:

Step-by-step explanation:

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2 years ago

I solved some of it but now I don't know if you continue it correctly ... To be performed: (lesson: Raducali of order "n")

nikitadnepr [17]

Answer:

-9

Step-by-step explanation:

$( \sqrt[4]{7} + 2)( \sqrt[4]{7} - 2)( \sqrt{7} + 4) \\ = ( { \sqrt[4]{7} }^{2} - {{2} }^{2} )( \sqrt{7} + 4) [because (a+b)(a-b) = a² - b²]\\ = ( \sqrt{7} - 4)( \sqrt{7} + 4) \\ = { \sqrt{7} }^{2} - {4}^{2}[because (a+b)(a-b) = a² - b²] \\ = 7 - 16 \\ = - 9$