What is compound interest?

Mathematics

2 answers:

Sav [38]3 years ago

6 0

That would be B . The interest is earned on the principal and interest earned previously.

Vikentia [17]3 years ago

5 0

The correct answer is

The interest is earned on the principal and interest earned previously

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Consider the sequence 3, -9, 27, -81 what an explicit formula for the sequence

Nataly_w [17]

-(-3)power (n )
n is 1;2;3;4;....

6 0

3 years ago

Helppppppp! 15 points!

Vika [28.1K]

${\boxed{\mathcal{\purple{D.\:81}}}}$ ✅

$\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\orange{:}}}}}$

$( {3})^{ \frac{11}{5} } \div {3}^{ \frac{ - 9}{5} } \\ \\=( {3})^{ \frac{11}{5} - ( \frac{ - 9}{5} ) } \\ \\ = ( {3})^{ \frac{11}{5} + \frac{9}{5} } \\ \\ = ( {3})^{ \frac{11 + 9}{5} } \\ \\ = ( {3})^{ \frac{20}{5} } \\ \\ = ( {3})^{4} \\ \\ = ( \: 3 \times 3 \times 3 \times 3 \: ) \\ \\ = 81$